OPEN OFFICE T8 HP FLUORESCENT HIGH PERFORMANCE LENSED

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1 OFFICE GUIDE 1 OPEN OFFICE T8 HP FLUORESCENT HIGH PERFORMANCE LENSED ROOM CHARACTERISTICS Length: 60' Width: 25' Height: 9' Reflectivity: Ceiling = 80% Walls = 50% Floor = 20% PRODUCT SPECIFICATIONS Photo credit: Government Offices, Tallahassee, FL, Lithonia Lighting Courtesy: Lithonia Lighting Dimensions: 24" x 48" Lenses: Refractor Lamps: (2) F32T8 HP Lumens per Lamp: 3100 Ballast Factor: 0.88* Lamp Lumen Depreciation: 0.95 Total Fixture Efficiency: 91% Watts: 54.5 * If the light levels are higher than required, consider a lower ballast factor (BF) for greater savings (see options on back). In a typical space with a 9' high, lay-in type ceiling, it is possible to provide high quality lighting that illuminates both horizontal and vertical surfaces, while meeting or beating the local energy code. This layout directs the light to evenly illuminate the ceiling, walls and tasks producing a broader and brighter distribution pattern for occupants. Traditional, flat-lensed troffers with parabolic louvers cannot achieve this type of distributed lighting. Install 2' x 4' high performance lensed luminaries, equipped with high performance electronic ballasts and (2) T8 32w high performance lamps. This combination should meet the target of 35+ average maintained footcandles. Though these solutions will NOT eliminate glare on traditional computer screens, they will work well with LCD monitors. In these examples, the highest light levels are possible only if the luminaires are placed over desks and work areas. Partitions can have a large impact. Their vertical surfaces absorb and block light, creating shadows if installed off-center of the luminaires. Task lights may still be needed to provide additional illumination and eliminate shadows.

2 LAYOUT OPTIONS Open Office (2) T8 HP Fluorescent High Performance Lensed 8' x 10' Spacing Number of Luminaires: 18 Luminaire Spacing: 8' x 10' Mounting Condition: Recessed Average Illumination: ~36 fc (30" AFF) Watts/sq. ft.: 0.65 Open Office (2) T8 HP Fluorescent High Performance Lensed 8' x 12' Spacing Number of Luminaires: 15 Luminaire Spacing: 8' x 12' Mounting Condition: Recessed Average Illumination: ~30 fc (30" AFF) Watts/sq. ft.: 0.54 ADDITIONAL ENERGY SAVING STRATEGIES IES Recommended Footcandles (fc): fc (30" AFF) STRATEGY WATTS/LUMINAIRE SAVINGS LIGHT LEVELS Daylight dimming ballasts (Primary daylight zone) ~30w (dim to 50%) 50% Maintained from daylight Lower ballast factor ~48w (BF of 0.77) 12% 10% lower ENERGY CODE INFORMATION JURISDICTION CODE LIGHTING POWER ALLOWANCE (OFFICES) Seattle 2009 Seattle Energy Code 0.90 w/sq. ft. Washington 2009 WSEC 0.91 w/sq. ft. Oregon 2010 OEESC 0.91 w/sq. ft. Idaho 2009 IECC 0.91 w/sq. ft. Montana 2009 IECC 0.91 w/sq. ft. LIGHTING LAYOUT : OPEN OFFICE T8 HP HIGH PERFORMANCE LENSED

3 WAREHOUSE OFFICE GUIDE GUIDE 2 XX OPEN OFFICE T8 HP FLUORESCENT ACRYLIC LENSED ROOM CHARACTERISTICS Length: 60' Width: 25' Height: 9' Reflectivity: Ceiling = 80% Walls = 50% Floor = 20% PRODUCT SPECIFICATIONS Photo Credit: css2psd.com Courtesy: Lithonia Lighting Dimensions: 24" x 48" Lenses: Acrylic Lamps: (2) F32T8 HP Lumens per Lamp: 3100 Ballast Factor: 0.88* Lamp Lumen Depreciation: 0.95 Total Fixture Efficiency: 84% Watts: 54.5 * If the light levels are higher than required, consider a lower ballast factor (BF) for greater savings (see options on back). In a typical space with a 9' high, lay-in type ceiling, it is possible to provide quality lighting that illuminates both horizontal and vertical surfaces, while meeting or beating the local energy code. Although High Performance Lensed fixtures are better at redirecting light to evenly illuminate the ceiling, wall and tasks, this layout produces a broad distribution pattern and performs better than traditional recessed fixtures with parabolic louvers. Install 2' x 4' acrylic lensed luminaires, equipped with high performance electronic ballasts and (2) T8 32w high performance lamps. This combination should meet the target of 35+ average maintained footcandles while keeping initial costs low. Though this solution can cause glare on traditional computer screens, it will work well with LCD monitors. In these examples, the highest light levels are possible only if the luminaires are placed over desks and work areas. Partitions can have a large impact. Their vertical surfaces absorb and block light, creating shadows if installed off-center of the luminaires. Task lights may still be needed to provide additional illumination and eliminate shadows.

4 LAYOUT OPTIONS Open Office (2) T8 HP Fluorescent Acrylic Lensed 8' x 10' Spacing Number of Luminaires: 18 Luminaire Spacing: 8' x 10' Mounting Condition: Recessed Average Illumination: ~41 fc (30" AFF) Watts/sq. ft.: ~0.61 Open Office (2) T8 HP Fluorescent Acrylic Lensed 8' x 12' Spacing Number of Luminaires: 15 Luminaire Spacing: 8' x 12' Mounting Condition: Recessed Average Illumination: ~34 fc (30" AFF) Watts/sq. ft.: ~0.51 IES Recommended Footcandles (fc): fc (30" AFF) ADDITIONAL ENERGY SAVING STRATEGIES STRATEGY WATTS/LUMINAIRE SAVINGS LIGHT LEVELS Daylight dimming ballasts (Primary daylight zone) ~30w (dim to 50%) 50% Maintained from daylight Lower ballast factor ~48w (BF of 0.77) 12% 10% lower ENERGY CODE INFORMATION JURISDICTION CODE LIGHTING POWER ALLOWANCE (OFFICES) Seattle 2009 Seattle Energy Code 0.90 w/sq. ft. Washington 2009 WSEC 0.91 w/sq. ft. Oregon 2010 OEESC 0.91 w/sq. ft. Idaho 2009 IECC 0.91 w/sq. ft. Montana 2009 IECC 0.91 w/sq. ft. LIGHTING LAYOUT : OPEN OFFICE T8 HP ACRYLIC LENSED

5 WAREHOUSE OFFICE GUIDE GUIDE 3 XX OPEN OFFICE T8 HP FLUORESCENT HIGH PERFORMANCE RETROFIT KIT ROOM CHARACTERISTICS Length: 60' Width: 25' Height: 9' Reflectivity: Ceiling = 80% Walls = 50% Floor = 20% PRODUCT SPECIFICATIONS Courtesy: Columbia Lighting Dimensions: 24" x 48" Lenses: Refractor Lamps: (2) F32T8 HP Lumens per Lamp: 3100 Ballast Factor: 0.88* Lamp Lumen Depreciation: 0.95 Total Fixture Efficiency: 91% Watts: 54.5 * If the light levels are higher than required, consider a lower ballast factor (BF) for greater savings (see options on back). In a typical space with a 9' high, lay-in type ceiling, it is possible to retrofit existing luminaires with a kit providing high quality lighting that illuminates both horizontal and vertical surfaces, while greatly reducing energy consumption. Unlike the luminaires they replace, this layout directs light in a manner that evenly illuminates the ceiling, walls and tasks producing a broader and brighter distribution pattern for occupants. Traditional, flat-lensed troffers or parabolic louvered fixtures cannot achieve this type of evenly distributed lighting. Install 2' x 4' high performance retrofit kits that replace existing lamps and ballasts (typically 3 or 4 lamps) with a high performance electronic ballast and (2) T8 32w high performance lamps. This combination should meet the target 35 average maintained footcandles. This solution will not eliminate all glare on traditional computer screens, but works especially well with LCD monitors. In these examples, the highest light levels are possible only if the luminaires are placed over desks and work areas. Partitions can have a large impact on light levels. Their vertical surfaces absorb and block light creating shadows if installed off-center of the luminaires. However, these high performance lenses minimize this effect. Task lights may still be needed to provide additional illumination, and eliminate shadows in high task areas.

6 LAYOUT OPTIONS Open Office (2) T8 HP Fluorescent High Performance Retrofit Kit 8' x 10' Spacing Number of Luminaires: 18 Luminaire Spacing: 8' x 10' Mounting Condition: Recessed Average Illumination: ~36 fc (30" AFF) Watts/sq. ft.: ~0.65 Open Office (2) T8 HP Fluorescent High Performance Retrofit Kit 8' x 12' Spacing Number of Luminaires: 15 Luminaire Spacing: 8' x 12' Mounting Condition: Recessed Average Illumination: ~30 fc (30" AFF) Watts/sq. ft.: ~0.54 IES Recommended Footcandles (fc): fc (30" AFF) ADDITIONAL ENERGY SAVING STRATEGIES STRATEGY WATTS/LUMINAIRE SAVINGS LIGHT LEVELS Daylight dimming ballasts (Primary daylight zone) ~30w (dim to 50%) 50% Maintained from daylight Lower ballast factor ~48w (BF of 0.77) 12% 10% lower ENERGY CODE INFORMATION JURISDICTION CODE LIGHTING POWER ALLOWANCE (OFFICES) Seattle 2009 Seattle Energy Code 0.90 w/sq. ft. Washington 2009 WSEC 0.91 w/sq. ft. Oregon 2010 OEESC 0.91 w/sq. ft. Idaho 2009 IECC 0.91 w/sq. ft. Montana 2009 IECC 0.91 w/sq. ft. LIGHTING LAYOUT : OPEN OFFICE T8 HP HIGH PERFORMANCE RETROFIT KIT

7 WAREHOUSE OFFICE GUIDE GUIDE 4 XX OPEN OFFICE T8 HP FLUORESCENT PENDANT DIRECT/INDIRECT ROOM CHARACTERISTICS Length: 60' Width: 25' Height: 9' Reflectivity: Ceiling = 80% Walls = 50% Floor = 20% PRODUCT SPECIFICATIONS Courtesy: Litecontrol In a typical space with a 9' high ceiling, it is possible to use a direct/ indirect method providing high quality lighting that illuminates the work area to recognized best practice lighting standards, and meets or beats the local energy codes significantly. Pendant hung, direct/indirect luminaires direct light into the space, evenly illuminating the ceiling, walls, and tasks providing a broad, uniform, and reasonably shadowless distribution pattern for the occupants. Dimensions: 9" x 48" Louvers: Parabolic Lamps: F32T8 HP Lumens per Lamp: 3100 Ballast Factor: 0.88 for (2) Lamp Luminaires, 0.77 for (3) Lamp Luminaires* Lamp Lumen Depreciation: 0.95 Watts: 2-Lamp at 54.5, 3-Lamp at 72.5 * If the light levels are higher than required, consider a lower ballast factor (BF) for greater savings (see options on back). Install pendant hung, direct/indirect luminaires equipped with high performance electronic ballasts and T8 32w high performance lamps, either individually, or in rows. These combinations should meet the target 30+ average maintained footcandles greatly reducing, if not eliminating, glare on traditional computer screens. In these examples, even light levels are possible due to the nondirectional nature of the luminaires making them a good choice for open office areas. It could also be used with similar success when placed over desks and work areas. Partitions can have a large impact on light levels. Their vertical surfaces absorb and block light, creating shadows if installed off-center of the luminaire. However, this is greatly minimized with this lighting system. Task lights may still be needed to provide additional illumination where critical tasks are required.

8 LAYOUT OPTIONS Open Office (2) T8 HP Fluorescent Pendant Direct/Indirect 12' Rows on 8' x 10' Spacing Number of Luminaires: 18 w/ (2) Lamps per Luminaire Luminaire Spacing: 8'x10' Mounting Condition: Pendant Average Illumination: ~38 fc (30" AFF) Watts/sq. ft.: ~0.73 Open Office (3) T8 HP Fluorescent Pendant Direct/Indirect 8' x 12' Spacing Number of Luminaires: 15 w/ (3) Lamps per Luminaire Luminaire Spacing: 8'x12' Mounting Condition: Pendant Average Illumination: ~46 fc (30" AFF) Watts/sq. ft.: ~0.88 IES Recommended Footcandles (fc): fc (30" AFF) ADDITIONAL ENERGY SAVING STRATEGIES: 2-LAMP FIXTURE (ONLY) STRATEGY WATTS/LUMINAIRE SAVINGS LIGHT LEVELS Daylight dimming ballasts (Primary daylight zone) ~30w (dim to 50%) 50% Maintained from daylight Lower ballast factor ~48w (BF of 0.77) 12% 11% lower ENERGY CODE INFORMATION JURISDICTION CODE LIGHTING POWER ALLOWANCE (OFFICES) Seattle 2009 Seattle Energy Code 0.90 w/sq. ft. Washington 2009 WSEC 0.91 w/sq. ft. Oregon 2010 OEESC 0.91 w/sq. ft. Idaho 2009 IECC 0.91 w/sq. ft. Montana 2009 IECC 0.91 w/sq. ft. LIGHTING LAYOUT : OPEN OFFICE T8 HP PENDANT DIRECT/INDIRECT

9 OFFICE GUIDE 5 PRIVATE OFFICE T8 HP FLUORESCENT HIGH PERFORMANCE LENSED 2'x 4' ROOM CHARACTERISTICS Length: 14' Width: 14' Height: 9' Reflectivity: Ceiling = 80% Walls = 50% Floor = 20% PRODUCT SPECIFICATIONS Courtesy: Lithonia Lighting Dimensions: 24" x 48" Reflector: Linear Faceted Lamps: (2) F32T8 HP Lumens per Lamp: 3100 Ballast Factor: 0.88* Lamp Lumen Depreciation: 0.95 Total Fixture Efficiency: 91% Watts: 54.5 * If the light levels are higher than required, consider a lower ballast factor (BF) for greater savings (see options on back). In a private office space, it is possible to achieve high quality lighting that illuminates the work area to recognized standards, and meets or beats the local energy codes. This layout provides the right amount of quality light needed for working in a private office setting while reducing energy consumption. Install 2' x 4' high performance lensed luminaires, equipped with high performance electronic ballasts and (2) T8 32w high performance lamps. This combination meets the target illumination level of 35+ average maintained footcandles. Though these solutions do not eliminate glare on traditional computer screens, they work well with LCD monitors and provide soft, pleasing, and even light throughout the space. In this space, besides appropriate light levels and Energy Code compliance, another primary consideration is lighting uniformity and the management of contrast, especially in the task area. Although task lighting may still be needed to provide additional illumination, this layout achieves a contrast ratio on the task plane, (+30"0), of less than 3.0 to 1, a highly desirable result.

10 LAYOUT OPTIONS Private Office (2) T8 HP Fluorescent High Performance Lensed 2'x4' 6' Spacing 6' Number of Luminaires: 2 Luminaire Spacing: 6' on center Mounting Condition: Recessed Mounting Height: 9' Average Illumination: ~38 fc (30" AFF) Watts/sq. ft.: ~0.56 IES Recommended Footcandles (fc): fc (30" AFF) ADDITIONAL ENERGY SAVING STRATEGIES STRATEGY WATTS/LUMINAIRE SAVINGS LIGHT LEVELS Daylight dimming ballasts (Primary daylight zone) ~30w (dim to 50%) 50% Maintained from daylight Lower ballast factor ~48w (BF of 0.77) 12% 10% lower Occupancy sensor 1 ~54.5w ~24% Equal to base design 1 "Meta-Analysis of Energy Savings from Lighting Controls in Commercial Buildings", LBNL-5095E, September ENERGY CODE INFORMATION JURISDICTION CODE LIGHTING POWER ALLOWANCE (OFFICES) Seattle 2009 Seattle Energy Code 0.90 w/sq. ft. Washington 2009 WSEC 0.91 w/sq. ft. Oregon 2010 OEESC 0.91 w/sq. ft. Idaho 2009 IECC 0.91 w/sq. ft. Montana 2009 IECC 0.91 w/sq. ft. LIGHTING LAYOUT : PRIVATE OFFICE T8 HP HIGH PERFORMANCE LENSED 2'x4'

11 OFFICE GUIDE 6 PRIVATE OFFICE T8 HP FLUORESCENT ACRYLIC LENSED 2'x4' ROOM CHARACTERISTICS Length: 14' Width: 14' Height: 9' Reflectivity: Ceiling = 80% Walls = 50% Floor = 20% PRODUCT SPECIFICATIONS Courtesy: Lithonia Lighting Dimensions: 24" x 48" Lenses: Acrylic Lamps: (2) F32T8 HP Lumens per Lamp: 3100 Ballast Factor: 0.88* Lamp Lumen Depreciation: 0.95 Total Fixture Efficiency: 84% Watts: 58 * If the light levels are higher than required, consider a lower ballast factor (BF) for greater savings (see options on back). In a private office setting, this layout provides quality light that illuminates the work area to recognized standards, and meets or beats the local energy codes. This combination of acrylic lens with high performance lamps and ballasts still provide excellent efficiency at a lower product cost when compared to the 2-lamp high performance lensed option. Lighting quality in the space is slightly reduced when using this option. Install 2' x 4' acrylic lensed luminaires, equipped with high performance electronic ballasts and (2) T8 32w high performance lamps. This combination meets the target illumination level of 35+ average maintained footcandles. Though this solution does not eliminate glare on traditional computer screens, it works well with LCD monitors. Although this strategy is a lower cost option compared to high performance lensed luminaires, it too provides adequate illumination on the task plane, while maintaining a contrast ratio of less than 3.0 to 1. One concern is potential glare on VDT type computer monitor screens from the acrylic lenses.

12 LAYOUT OPTIONS Private Office (2) T8 HP Fluorescent Acrylic Lensed 2'x4' 6' Spacing 6' Number of Luminaires: 2 Luminaire Spacing: 6' on center Mounting Condition: Recessed Mounting Height: 9' Average Illumination: ~38 fc (30" AFF) Watts/sq. ft.: ~0.59 IES Recommended Footcandles (fc): fc (30" AFF) ADDITIONAL ENERGY SAVING STRATEGIES STRATEGY WATTS/LUMINAIRE SAVINGS LIGHT LEVELS Daylight dimming ballasts (Primary daylight zone) ~30w (dim to 50%) 50% Maintained from daylight Lower ballast factor ~48w (BF of 0.77) 12% 10% lower Occupancy Sensor 1 ~54.5w ~24% Equal to base design 1 "Meta-Analysis of Energy Savings from Lighting Controls in Commercial Buildings", LBNL-5095E, September ENERGY CODE INFORMATION JURISDICTION CODE LIGHTING POWER ALLOWANCE (OFFICES) Seattle 2009 Seattle Energy Code 0.90 w/sq. ft. Washington 2009 WSEC 0.91 w/sq. ft. Oregon 2010 OEESC 0.91 w/sq. ft. Idaho 2009 IECC 0.91 w/sq. ft. Montana 2009 IECC 0.91 w/sq. ft. LIGHTING LAYOUT : PRIVATE OFFICE T8 HP ACRYLIC LENSED 2'x4'

13 WAREHOUSE GUIDE 1 WAREHOUSE T5HO FLUORESCENT ROOM CHARACTERISTICS Length: 72' Width: 150' Height: 28' Open Ceiling Reflectivity: Ceiling = 80% Walls = 30% Floor = 20% Product = 30% PRODUCT SPECIFICATIONS Photo credit: Cardinal Health Warehouse Depew, NY Courtesy: Lithonia Lighting Dimensions: 9.75" x 48" Louvers: Blade Lamps: (2) F54T5HO Lumens per Lamp: 4400 Ballast Factor: 1.0 Lamp Lumen Depreciation: 0.95 Total Fixture Efficiency: ~83% Watts: 120 In a typical high, open ceiling warehouse application, it is possible to provide high quality lighting that adequately illuminates the warehouse shelves while meeting or beating the local energy code. When provided with targeted optical control, this layout takes advantage of stack lighting strategies and distributes light onto the vertical surfaces allowing for better product recognition and ultimately improved productivity. Install industrial high bay fluorescent luminaires located over the center of each aisle. Luminaires equipped with T5HO electronic ballasts and (2) 54w T5HO lamps will deliver 10+ average maintained vertical footcandles on the face of the stacks. Stacks have a large impact on the illumination of the space. Vertical surfaces absorb and block light. The stack layout must correspond to the lighting layout to minimize shadows (if luminaires are installed off center of the aisles).

14 LAYOUT OPTIONS Warehouse (2) T5HO Fluorescent 18' x 15' Spacing Number of Luminaires: 40 Luminaire Spacing: 18' x 15' Mounting Condition: Pendant Mounting Height: 24' to bottom of luminaire Average Illumination: ~16 fc horizontal ~11 fc vertical Watts/sq. ft.: ~0.45 IES Recommended Footcandles (fc): fc horizontal 5-15 fc vertical CONTROLS Occupancy sensors or building energy management systems now MUST be used to turn lights off automatically when occupants are away, or after hours. One cost effective solution is specifying luminaires with integral occupancy sensors. This will minimize wiring labor costs. Daylight harvesting controls, by code, must be used on all luminaires within the Daylight Zone, which is typically 70% of the ceiling height in all directions from the edge of a skylight. ADDITIONAL ENERGY SAVING STRATEGIES STRATEGY WATTS/LUMINAIRE SAVINGS LIGHT LEVELS Daylight dimming sensors (near skylights) ~24w (dim to 20%) ~80% Maintained from daylight Integrated occupancy sensors 1 ~120w 20% to 40% Equal to base design 1 "Meta-Analysis of Energy Savings from Lighting Controls in Commercial Buildings", LBNL-5095E, September ENERGY CODE INFORMATION JURISDICTION CODE LIGHTING POWER ALLOWANCE (WAREHOUSES) Seattle 2009 Seattle Energy Code 0.50 w/sq. ft. Washington 2009 WSEC 0.50 w/sq. ft. Oregon 2010 OEESC 0.73 w/sq. ft. Idaho 2009 IECC 0.80 w/sq. ft. Montana 2009 IECC 0.80 w/sq. ft. LIGHTING LAYOUT : WAREHOUSE T5HO FLUORESCENT

15 WAREHOUSE GUIDE 2 WAREHOUSE T8 HP FLUORESCENT ROOM CHARACTERISTICS Length: 72' Width: 150' Height: 28' Open Ceiling Reflectivity: Ceiling = 80% Walls = 30% Floor = 20% Product = 30% PRODUCT SPECIFICATIONS Photo credit: Dairygold- Warehouse Courtesy: Columbia Lighting Dimensions: 9.75" x 96" Louvers: Blade Lamps: (3) F32T8 HP Lumens per Lamp: 3100 Ballast Factor: 0.88* Lamp Lumen Depreciation: 0.95 Total Fixture Efficiency: ~83% Watts: 83 * If the light levels are higher than required, consider a lower ballast factor (BF) for greater savings (see options on back). In a typical high, open ceiling warehouse application, it is possible to provide high quality lighting that adequately illuminates the warehouse shelves while meeting or beating the local energy code. The situation requires luminaires with optical control capable of effectively distributing light onto the vertical surfaces, which provides excellent product recognition and improved productivity. Install industrial high bay fluorescent luminaires located over the center of each aisle. Luminaires equipped with T8 HP electronic ballasts and (3) 32w T8 high performance lamps will deliver 10+ average maintained vertical footcandles on the face of the stacks. Stacks have a large impact on the illumination of the space. Vertical surfaces absorb and block light. The stack layout must correspond to the lighting layout to minimize shadows (if luminaires are installed off center of the aisles).

16 LAYOUT OPTIONS Warehouse (3) T8 HP Fluorescent 18' x 13' Spacing Number of Luminaires: 44 Luminaire Spacing: 18' x 13' Mounting Condition: Pendant Mounting Height: 24' Average Illumination: ~15 fc horizontal ~11 fc vertical Watts/sq. ft.: ~0.34 IES Recommended Footcandles (fc): fc horizontal 5-15 fc vertical CONTROLS Occupancy sensors or building energy management systems now MUST be used to turn lights off automatically when occupants are away, or after hours. One cost effective solution is specifying luminaires with integral occupancy sensors. This will minimize wiring labor costs. Daylight harvesting controls, by code, must be used on all luminaires within the Daylight Zone, which is typically 70% of the ceiling height in all directions from the edge of a skylight. ADDITIONAL ENERGY SAVING STRATEGIES STRATEGY WATTS/LUMINAIRE SAVINGS LIGHT LEVELS Daylight dimming sensors (near skylights) ~17w (dim to 20%) 80% Maintained from daylight Integrated occupancy sensors 1 ~83w (average) 20% to 40% Equal to base design Lower ballast factor ~74w (BF of 0.77) 23% 10% lower 1 "Meta-Analysis of Energy Savings from Lighting Controls in Commercial Buildings", LBNL-5095E, September ENERGY CODE INFORMATION JURISDICTION CODE LIGHTING POWER ALLOWANCE (WAREHOUSES) Seattle 2009 Seattle Energy Code 0.50 w/sq. ft. Washington 2009 WSEC 0.50 w/sq. ft. Oregon 2010 OEESC 0.73 w/sq. ft. Idaho 2009 IECC 0.80 w/sq. ft. Montana 2009 IECC 0.80 w/sq. ft. LIGHTING LAYOUT : WAREHOUSE T8 HP FLOURESCENT

17 WAREHOUSE GUIDE 3 OPEN WAREHOUSE T5HO FLUORESCENT ROOM CHARACTERISTICS Length: 150' Width: 72' Height: 32' Open Ceiling Reflectivity: Ceiling = 80% Walls = 30% Floor = 20% PRODUCT SPECIFICATIONS Courtesy: Columbia Lighting Dimensions: 12" x 48" Reflector: Specular Aluminum Lamps: (4) F54T5HO Lumens per Lamp: 5000 Ballast Factor: 1.0* Lamp Lumen Depreciation: 0.95 Total Fixture Efficiency: 87% Watts: 226 In a typical high, open ceiling warehouse application, it is possible to provide high quality lighting that illuminates the warehouse floor and task areas to recognized standards, and meets or beats the local energy codes. When equipped with appropriate optical control, this layout distributes light primarily on horizontal surfaces allowing for better task lighting, ultimately improving productivity. Install industrial high bay fluorescent luminaires on 20' x 24' centers, equipped with (4) T5HO electronic ballasts and (4) 54w T5HO lamps. For this application, uniformity of illumination is desirable, and vertical illumination is far less important. This layout distributes light evenly throughout the space, at contrast ratios of about , and maintains an average illumination level of about 20+ footcandles. In this application, the emphasis is not only on appropriate horizontal illumination, but on uniformity as well. The layout achieves a desirable contrast ratio.

18 LAYOUT OPTIONS Open Warehouse (4) T5HO Fluorescent 20' x 24' Spacing 20' 24' Number of Luminaires: 21 Luminaire Spacing: 20' x 24' Mounting Condition: Pendant Mounting Height: 28' Average Illumination: ~22 fc Watts/sq. ft.: ~0.45 IES Recommended Footcandles (fc): fc CONTROLS Occupancy sensors or building energy management systems now MUST be used to turn lights off automatically when occupants are away, or after hours. One cost effective solution is specifying luminaires with integral occupancy sensors. This will minimize wiring labor costs. Daylight harvesting controls, by code, must be used on all luminaires within the Daylight Zone, which is typically 70% of the ceiling height in all directions from the edge of a skylight. ADDITIONAL ENERGY SAVING STRATEGIES STRATEGY WATTS/LUMINAIRE SAVINGS LIGHT LEVELS Daylight dimming sensors (near skylights) ~48w (dim to 20%) ~80% Maintained from daylight Integrated occupancy sensors 1 ~226w 20% to 40% Equal to base design 1 "Meta-Analysis of Energy Savings from Lighting Controls in Commercial Buildings", LBNL-5095E, September ENERGY CODE INFORMATION JURISDICTION CODE LIGHTING POWER ALLOWANCE (WAREHOUSES) Seattle 2009 Seattle Energy Code 0.50 w/sq. ft. Washington 2009 WSEC 0.50 w/sq. ft. Oregon 2010 OEESC 0.73 w/sq. ft. Idaho 2009 IECC 0.80 w/sq. ft. Montana 2009 IECC 0.80 w/sq. ft. LIGHTING LAYOUT : OPEN WAREHOUSE T5HO FLUORESCENT

19 WAREHOUSE GUIDE 4 OPEN WAREHOUSE T8 HP FLUORESCENT ROOM CHARACTERISTICS Length: 150' Width: 72' Height: 32' Open Ceiling Reflectivity: Ceiling = 80% Walls = 30% Floor = 20% PRODUCT SPECIFICATIONS Courtesy: Columbia Lighting Dimensions: 17" x 48" Reflector: Specular Aluminum Lamps: (6) F32T8 HP Lumens per Lamp: 3100 Ballast Factor: 1.15* Lamp Lumen Depreciation: 0.95 Total Fixture Efficiency: 87% Watts: 217 * If the light levels are higher than required, consider a lower ballast factor (BF) for greater savings (see options on back). In a typical high, open ceiling warehouse application, it is possible to provide high quality lighting that illuminates the warehouse floor area to recognized standards, and meets or beats the local energy codes. This layout provides broad, even-lighting throughout the space, allowing for better product recognition and improved productivity. Install industrial high bay fluorescent luminaires on 20' x 24' centers, equipped with T8 electronic ballasts and (6) 32w T8 high performance lamps. For this application, uniformity of illumination is desirable, and vertical illumination is far less important. This layout distributes light evenly throughout the space, at contrast ratios of about , and maintains an average illumination level of about 20+ footcandles. In this application, the emphasis is not only on appropriate horizontal illumination, but on uniformity as well. The layout achieves a desirable contrast ratio.

20 LAYOUT OPTIONS Open Warehouse (6) T8 HP Fluorescent 20' x 24' Spacing 20' 24' Number of Luminaires: 21 Luminaire Spacing: 20' x 24' Mounting Condition: Pendant Mounting Height: 28' Average Illumination: ~22 fc Watts/sq. ft.: ~0.42 IES Recommended Footcandles (fc): fc CONTROLS Occupancy sensors or building energy management systems now MUST be used to turn lights off automatically when occupants are away, or after hours. One cost effective solution is specifying luminaires with integral occupancy sensors. This will minimize wiring labor costs. Daylight harvesting controls, by code, must be used on all luminaires within the Daylight Zone, which is typically 70% of the ceiling height in all directions from the edge of a skylight. ADDITIONAL ENERGY SAVING STRATEGIES STRATEGY WATTS/LUMINAIRE SAVINGS LIGHT LEVELS Daylight dimming sensors (near skylights) ~43w (dim to 20%) 80% Maintained from daylight Integrated occupancy sensors 1 ~217w 20% to 40% Equal to base design Lower ballast factor ~167w (BF of 0.88) 23% 20% lower 1 "Meta-Analysis of Energy Savings from Lighting Controls in Commercial Buildings", LBNL-5095E, September ENERGY CODE INFORMATION JURISDICTION CODE LIGHTING POWER ALLOWANCE (WAREHOUSES) Seattle 2009 Seattle Energy Code 0.50 w/sq. ft. Washington 2009 WSEC 0.50 w/sq. ft. Oregon 2010 OEESC 0.73 w/sq. ft. Idaho 2009 IECC 0.80 w/sq. ft. Montana 2009 IECC 0.80 w/sq. ft. LIGHTING LAYOUT : OPEN WAREHOUSE T8 HP FLUORESCENT

21 WAREHOUSE GUIDE 5 OPEN WAREHOUSE HIGH BAY INDUCTION ROOM CHARACTERISTICS Length: 150' Width: 72' Height: 32' Open Ceiling Reflectivity: Ceiling = 80% Walls = 30% Floor = 20% PRODUCT SPECIFICATIONS Courtesy: Deco Lighting Dimensions: 22" Diameter Reflector: Prismatic Acrylic Lamps: 280w Induction Lumens per Lamp: 25,760 Ballast Factor: n.a. Lamp Lumen Depreciation: ~65,000 hrs. at L 70 Total Fixture Efficiency: ~93% Watts: 280 In a typical high, open ceiling warehouse application, it is possible to provide superior quality lighting that illuminates the warehouse floor area to recognized standards, and meets or beats the local energy codes. Induction technology will produce broad, even lighting throughout the space, allowing for better product recognition and improved productivity. Advantages of this option are longer life span resulting in reduced maintenance costs, enhanced color rendering, instant on capability and full-range dimming. In addition, it can be used in dual mode as a lighting and emergency lighting system. Install industrial high bay induction luminaires on 25' x 30' centers, equipped with a single 280w induction lamp and prismatic acrylic reflectors. For this application, installers should seek uniformity of illumination on the horizontal plane. This layout should distribute light evenly throughout the space at a contrast ratio of about and an average illumination level of 20+ footcandles. In this application, the emphasis is not only on appropriate light levels, but on maintenance as well. These luminaires are capable of producing more than 90 lumens-per-watt, with an average life of ~60,000 hours at L 70.* * L70 is the useful life or the length of time it takes an LED light source to reach 70% of its initial lumen output.

22 LAYOUT OPTIONS Open Warehouse High Bay Induction 25' x 30' Spacing 30' 25' Number of Luminaires: 15 Luminaire Spacing: 25' x 30' Mounting Condition: Pendant Mounting Height: 28' Average Illumination: ~22 fc Watts/sq. ft.: ~0.4 IES Recommended Footcandles (fc): fc CONTROLS Due to energy codes, occupancy sensors or building energy management systems must be used to turn lights off automatically when occupants are away or during after hours. One cost effective solution is specifying luminaires with integral occupancy sensors. This will minimize wiring labor costs. Daylight harvesting controls, by code, must be used on all luminaires within the daylight zone, which is typically 70% of the ceiling height in all directions from the edge of a skylight. ADDITIONAL ENERGY SAVING STRATEGIES STRATEGY WATTS/LUMINAIRE SAVINGS LIGHT LEVELS Daylight dimming sensors (near skylights) ~56w (dim to 20%) 80% Maintained from daylight Integrated or add-on occupancy sensors 1 ~280w 20% to 40% Equal to base design 1 "Meta-Analysis of Energy Savings from Lighting Controls in Commercial Buildings", LBNL-5095E, September ENERGY CODE INFORMATION JURISDICTION CODE LIGHTING POWER ALLOWANCE (WAREHOUSES) Seattle 2009 Seattle Energy Code 0.50 w/sq. ft. Washington 2009 WSEC 0.50 w/sq. ft. Oregon 2010 OEESC 0.73 w/sq. ft. Idaho 2009 IECC 0.80 w/sq. ft. Montana 2009 IECC 0.80 w/sq. ft. LIGHTING LAYOUT : OPEN WAREHOUSE HIGH BAY INDUCTION

23 WAREHOUSE GUIDE 6 OPEN WAREHOUSE DAYLIGHT CONTROLS OPEN LOOP ROOM CHARACTERISTICS Length: Varies Width: Varies Height: 32' Open Ceiling PRODUCT SPECIFICATIONS In a typical high, open ceiling warehouse with fluorescent high bay luminaires and skylights using daylight controls, it is possible to provide high quality lighting that illuminates the warehouse floor and task areas to recognized standards, meets or beats energy codes (typically 0.50 watts/sq.ft. for warehouses) and is within the IES recommended footcandle (fc) levels for warehouse spaces fc. Courtesy: Watt Stopper Sensor Type: ON/OFF & automatic dimming photocell Mounting: Surface/ceiling Configuration: Open Loop For additional information about lighting layout options in warehouse applications, refer to our Lighting Layout Guide Series: Open Warehouse Guides 1 thru 5. Install photo-sensing lighting control devices in an Open Loop configuration. Open Loop systems measure only incoming daylight, not the contribution from the electric lighting. The photosensors are therefore typically mounted either outside the building or inside near the daylight aperture, in this case, the skylights. Open Loop systems tend to be easier to set up, requiring a light level reading only during the daytime. Most energy codes now require controlled luminaires within the Daylight Zones separate from those outside the zones. Luminaires within the zones must be controlled by automatic daylight sensing devices capable of either continuous dimming to at least 20% of light output, step switching of each lamp in individual luminaires, or step dimming of all lamps to 50% of light output, and must include an automatic OFF control. NOTE: CHECK LOCAL ENERGY CODES IN YOUR JURISDICTION FOR CURRENT REQUIREMENTS. Brought to you by With support from

24 LAYOUT OPTIONS Open Warehouse Daylight Controls Open Loop Plan View of Daylight Zone Diagram A Section View of Daylight Zone Diagram B Detail View of Skylight Diagram C Courtesy: Watt Stopper CONTROLS The Daylight Zone under a skylight is defined by most jurisdictions to be the area under a skylight whose horizontal dimension, in each direction, is equal to the skylights dimension in that direction plus 70% of the floor to ceiling height (with notations for partitions and other skylights nearby). Any luminaire within the Daylight Zone must be controlled separately from those outside the Daylight Zone. Open Loop photocells are used to measure only incoming daylight, NOT the contribution from the electric lighting. The photosensor should not see any electric light, therefore it must be mounted near the skylight pointed toward the sky (see Diagram C). It is called an Open Loop because there is no feedback to the sensor. A primary advantage of Open Loop systems is that only one sensor is needed to control large lighting zones. Another cost effective option is specifying luminaires with integral photocells. This will minimize wiring labor costs. However, they tend to be Closed Loop systems and will need different commissioning. ADDITIONAL ENERGY SAVING STRATEGIES* STRATEGY WATTS/LUMINAIRE SAVINGS LIGHT LEVELS Daylight dimming sensor (near skylights) ~48w (dim to 20%) ~80% Maintained from daylight Integrated occupancy sensors ~226w 20% - 40% Equal to base design *Meta-Analysis of Energy Savings from Lighting Controls in Commercial Buildings, LBNL-509SE, September, 2011 LIGHTING LAYOUT : OPEN WAREHOUSE DAYLIGHT CONTROLS OPEN LOOP

25 GYMNASIUM GUIDE 1 GYMNASIUM T5HO FLUORESCENT ROOM CHARACTERISTICS Length: 140' Width: 120' Height: 30' Open Ceiling Reflectivity: Ceiling = 50% Walls = 50% Floor = 20% PRODUCT SPECIFICATIONS Courtesy: Columbia Lighting Dimensions: 24" x 48" Reflector: Specular Aluminum Lamps: (6) F54T5HO Lumens per Lamp: 5000 Ballast Factor: 1.0 Lamp Lumen Depreciation: 0.95 Total Fixture Efficiency: 96% Watts: 302 Provide high quality lighting that illuminates the gymnasium floor area to recognized light level standards, and meets or beats the local energy codes. Like all fluorescent systems, this design option has the advantage of coming to full brightness quickly compared to the HID systems they replace, which allows the use of automated and manual controls, dimming and emergency lighting. In addition, compared to using T8s, this option allows you to substantially reduce the number of fixtures (48 vs. 88) to achieve the same light levels 78 footcandles. Install industrial high bay fluorescent luminaires on 16' x 20' centers, equipped with T5HO electronic ballasts and (6) 54w T5HO lamps, which have superior color rendering properties. Fixture options allow for integrally mounted occupancy sensors, photo cells, emergency lighting, lamp guards, and multiple switching of lamps. In this application, the emphasis is not only on appropriate horizontal and vertical illumination, but on uniformity as well. The layout achieves a desirable contrast ratio of less than 4 to 1. Note: Some collegiate sports require higher minimum light levels for competition or for televised events.

26 LAYOUT OPTIONS Gymnasium (6) T5HO Fluorescent 20' x 24' Spacing Number of Luminaires: 36 Luminaire Spacing: 20' x 24' Mounting Condition: Pendant Mounting Height: 25' Average Illumination: ~49 fc Watts/sq. ft.: ~0.65 IES Recommended Footcandles (fc): 125 fc Class I - Professional 80 fc Class II - College 50 fc Class III - High School 30 fc Class IV - Elementary CONTROLS Occupancy sensors or building energy management systems must be used to turn lights off automatically when occupants are away or after hours. One cost effective solution is specifying luminaires with integral occupancy sensors. This will minimize wiring labor costs. Daylight harvesting controls, by code, must be used on all luminaires within the Daylight Zone, which is typically 70% of the ceiling height in all directions from the edge of the skylight or equal to the window height away from the wall and the window width plus 2' at each side. ADDITIONAL ENERGY SAVING STRATEGIES STRATEGY WATTS/LUMINAIRE SAVINGS LIGHT LEVELS Daylight dimming ballasts (Primary daylight zone) ~60w (dim to 20%) 80% Maintained from daylight Integrated or zone control occupancy sensors 1 ~302w 20% to 40% Equal to base design 1 "Meta-Analysis of Energy Savings from Lighting Controls in Commercial Buildings", LBNL-5095E, September ENERGY CODE INFORMATION JURISDICTION CODE LIGHTING POWER ALLOWANCE (GYMNASIUM) Seattle 2009 Seattle Energy Code 0.95 w/sq. ft. Washington 2009 WSEC 0.95 w/sq. ft. Oregon 2010 OEESC 1.07 w/sq. ft. Idaho 2009 IECC 1.10 w/sq. ft. Montana 2009 IECC 1.10 w/sq. ft. LIGHTING LAYOUT : GYMNASIUM T5HO FLUORESCENT

27 GYMNASIUM GUIDE 2 GYMNASIUM T8 HP FLUORESCENT ROOM CHARACTERISTICS Length: 140' Width: 120' Height: 30' Open Ceiling Reflectivity: Ceiling = 50% Walls = 50% Floor = 20% PRODUCT SPECIFICATIONS Courtesy: Columbia Lighting Dimensions: 24" x 48" Reflector: Specular Aluminum Lamps: (6) F32T8 HP Lumens per Lamp: 3100 Ballast Factor: 0.88 Lamp Lumen Depreciation: 0.95 Total Fixture Efficiency: 95% Watts: 169 Provide high quality lighting that illuminates the gymnasium floor area to recognized light level standards, and meets or beats the local energy codes. Like all fluorescent systems, this design option has the advantage of coming to full brightness quickly compared to the HID systems they replace, which allows the use of automated and manual controls, dimming and emergency lighting. Install industrial high bay fluorescent luminaires on 12' x 15' centers, equipped with high performance T8 electronic ballasts and (6) 32w T8 high performance lamps, which have superior color rendering properties. The use of T8 lamps may also allow the school to stay with the same lamp type throughout the building for consistency or when ceiling heights are lower. In this application, the emphasis is not only on appropriate horizontal and vertical illumination, but on uniformity as well. This layout achieves a desirable contrast ratio of less than 4 to 1. Note: Some collegiate sports require higher minimum light levels for competition or for televised events.

28 LAYOUT OPTIONS Gymnasium (6) T8 Fluorescent 15' x 17' Spacing Number of Luminaires: 63 Luminaire Spacing: 15' x 17' Mounting Condition: Pendant Mounting Height: 25' Average Illumination: ~55 fc Watts/sq. ft.: ~0.63 IES Recommended Footcandles (fc): 125 fc Class I - Professional 80 fc Class II - College 50 fc Class III - High School 30 fc Class IV - Elementary CONTROLS Occupancy sensors or building energy management systems must be used to turn lights off automatically when occupants are away or after hours. One cost effective solution is specifying luminaires with integral occupancy sensors. This will minimize wiring labor costs. Daylight harvesting controls, by code, must be used on all luminaires within the Daylight Zone, which is typically 70% of the ceiling height in all directions from the edge of the skylight, or equal to the window height away from the wall and the window width plus 2' at each side. ADDITIONAL ENERGY SAVING STRATEGIES STRATEGY WATTS/LUMINAIRE SAVINGS LIGHT LEVELS Daylight dimming ballasts (Primary daylight zone) ~34w (dim to 20%) 80% Maintained from daylight Integrated or zone control occupancy sensors 1 ~169w 20% to 40% Equal to base design 1 "Meta-Analysis of Energy Savings from Lighting Controls in Commercial Buildings", LBNL-5095E, September ENERGY CODE INFORMATION JURISDICTION CODE LIGHTING POWER ALLOWANCE (GYMNASIUM) Seattle 2009 Seattle Energy Code 0.95 w/sq. ft. Washington 2009 WSEC 0.95 w/sq. ft. Oregon 2010 OEESC 1.07 w/sq. ft. Idaho 2009 IECC 1.10 w/sq. ft. Montana 2009 IECC 1.10 w/sq. ft. LIGHTING LAYOUT : GYMNASIUM T8 HP FLUORESCENT

29 PARKING GARAGE GUIDE 1 PARKING GARAGE LED RETROFIT ROOM CHARACTERISTICS Length: 225' Width: 116' Height: 11' Hard Ceiling Reflectivity: Ceiling = 40% Walls = 20% Floor = 20% PRODUCT SPECIFICATIONS Courtesy: Kim Lighting i Dimensions: 18" diameter Reflector: Acrylic Lamps: (60) LED diodes Lumens: Absolute, as opposed to Relative Photometry* Lamp Lumen Depreciation: 0.70 Total Fixture Efficiency: 83% Watts: 72 * The standard method for testing light output and distribution of LED lighting fixtures. Total Lumen output of the luminaire with lamp installed. Provide high quality lighting that illuminates both the horizontal driving surfaces and vertical stalls of the parking garage to recognized standards and meets or beats the local energy codes. Like all LED systems, this option has the advantage of coming to either 50% brightness or to full brightness more quickly than the HID systems they tend to replace. This allows for bi-level and full occupancy control. Install low-bay industrial LED luminaires, specially designed for parking garages. While this option requires tighter spacing and more fixtures to deliver similar illumination levels as a standard 2-lamp fluorescent layout, it uses less wattage with increased energy savings through longer operating hours. This option also lowers maintenance costs and lasts longer with the added benefit of emergency egress lighting built in. Finally, this option performs well in colder climates, as the lights come on instantly. As in many similar applications, the concern is not only for appropriate horizontal and vertical illumination, but on glare control at the fixture level, energy management and system maintenance. LED parking garage fixtures are designed specifically to control surface glare through optical shielding, consume about the same number of watts as a 2-lamp fluorescent fixture and last 60,000 to 70,000 hours.

30 LAYOUT OPTIONS Parking Garage LED Retrofit 25' x 25' Spacing Number of Luminaires: 34 Luminaire Spacing: 25' x 25' Mounting Condition: Surface Mounting Height: 10'5" Average Illumination: ~3.7 fc horizontal ~2.9 fc vertical Watts/sq. ft.: ~0.10 IES Recommended Footcandles (fc): 5 fc Average 1 fc Minimum 10:1 Max/Min Uniformity Ratio CONTROLS Lighting in parking garages must have one or more control devices to automatically reduce lighting power in any one controlled zone by at least 50% within 30 minutes of all occupants leaving that zone. One cost effective solution is specifying luminaires with integral occupancy sensors, many of which can be programmed for bi-level control. This will minimize wiring labor costs. ADDITIONAL ENERGY SAVING STRATEGIES STRATEGY WATTS/LUMINAIRE SAVINGS LIGHT LEVELS Daylight controls on perimeter to turn off fixtures ~72w 100% (daytime only) Maintained from daylight ENERGY CODE INFORMATION JURISDICTION CODE LIGHTING POWER ALLOWANCE (PARKING GARAGES) Seattle 2009 Seattle Energy Code 0.20 w/sq. ft. Washington 2009 WSEC 0.20 w/sq. ft. Oregon 2010 OEESC 0.26 w/sq. ft. Idaho 2009 IECC 0.30 w/sq. ft. Montana 2009 IECC 0.30 w/sq. ft. LIGHTING LAYOUT : PARKING GARAGE LED RETROFIT

31 PARKING GARAGE GUIDE 2 PARKING GARAGE T8 FLUORESCENT ROOM CHARACTERISTICS Length: 225' Width: 116' Height: 11' Hard Ceiling Reflectivity: Ceiling = 40% Walls = 20% Floor = 20% PRODUCT SPECIFICATIONS Courtesy: Alumen Dimensions: 6" x 48" Lens: Radial Linear Acrylic Lamps: (2) F32T8 Lumens per Lamp: 2950 Ballast Factor: 1.15* Lamp Lumen Depreciation: 0.95 Total Fixture Efficiency: 83% Watts: 78 * If the light levels are higher than required, consider a lower ballast factor (BF) for greater savings (see options on back). Provide high quality lighting that illuminates both the horizontal driving surfaces and vertical stalls of the parking garage to recognized standards and meets or beats the local energy codes. Like all fluorescent systems, this option has the advantage of coming to either 50% brightness or to full brightness more quickly than the HID systems they tend to replace, if wired for it. This allows for bi-level and full occupancy control. Install fluorescent wrap type luminaires specially designed for parking garages, on 26'-8" x 36' centers, equipped with T8 electronic ballasts and (2) 32w T8 lamps. This option requires fewer fixtures to deliver similar illumination levels than LED or HID systems, will use a similar amount of energy, last almost as long and is far less costly. In all parking garages, the concern is not only for appropriate horizontal and vertical illumination, but on glare control at the fixture level in addition to energy management and system maintenance. Linear fluorescent parking garage fixtures are designed specifically to control surface glare through optical shielding. While consuming a few watts more than an LED system of equal output, these fixtures last just as long as much as 60,000 hours.

32 LAYOUT OPTIONS Parking Garage (2) T8 Fluorescent 26'-8" x 36' Spacing Number of Luminaires: 25 Luminaire Spacing: 26'-8" x 36' Mounting Condition: Surface Mounting Height: 11' Average Illumination: ~4.2 fc horizontal ~2.9 fc vertical Watts/sq. ft.: ~0.10 IES Recommended Footcandles (fc): 5 fc Average 1 fc Minimum 10:1 Max/Min Uniformity Ratio CONTROLS Lighting in parking garages must have one or more control devices to automatically reduce lighting power in any one controlled zone by at least 50% within 30 minutes of all occupants leaving that zone. One cost effective solution is specifying luminaires with integral occupancy sensors, many of which can be programmed for bi-level control. This will minimize wiring labor costs. ADDITIONAL ENERGY SAVING STRATEGIES STRATEGY WATTS/LUMINAIRE SAVINGS LIGHT LEVELS Daylight Controls on Perimeter to turn off fixtures ~78w 100% (daytime only) Lower ballast factor ~54w (BF of 0.88) 23% 20% lower Maintained from daylight ENERGY CODE INFORMATION JURISDICTION CODE LIGHTING POWER ALLOWANCE (PARKING GARAGES) Seattle 2009 Seattle Energy Code 0.20 w/sq. ft. Washington 2009 WSEC 0.20 w/sq. ft. Oregon 2010 OEESC 0.26 w/sq. ft. Idaho 2009 IECC 0.30 w/sq. ft. Montana 2009 IECC 0.30 w/sq. ft. LIGHTING LAYOUT : PARKING GARAGE T8 FLUORESCENT

33 CLASSROOM GUIDE 1 CLASSROOM T8 HP FLUORESCENT DIRECT/INDIRECT ROOM CHARACTERISTICS Length: 32' Width: 30' Height: 9' Reflectivity: Ceiling = 80% Walls = 60% Floor = 20% PRODUCT SPECIFICATIONS Courtesy: Litecontrol Dimensions: 9" x 48" Baffle: Semi-Specular Lamps: (2) F32T8 HP Lumens per Lamp: 3100 Ballast Factor: 0.88* Lamp Lumen Depreciation: 0.95 Watts: 59 * If the light levels are higher than required, consider a lower ballast factor (BF) for greater savings (see options on back). In this typical classroom space with a 9' high ceiling, it is possible to provide high quality even lighting that both illuminates the vertical surfaces and desk tops to recognized standards, and meets or beats the local energy codes. This solution is the current best practice recommended for classrooms. Install (2) rows of pendant mounted, direct/indirect luminaires, equipped with electronic ballasts and (2) T8 32w high performance lamps. This combination meets the target of 35+ average maintained footcandles. This solution also substantially reduces glare on traditional computer screens, and works well with LCD monitors. As is the case with many interior applications such as office spaces, this layout emphasizes not only appropriate horizontal and vertical illumination, but uniformity as well. This layout also achieves a highly desirable contrast ratio of less than 5.0 to 1.0 at desk level.

34 LAYOUT OPTIONS Classroom (2) T8 HP Fluorescent Direct/Indirect 12' Spacing Number of Luminaires: 10 Luminaire Spacing: (2) Rows 12' on center Mounting Condition: Pendant Mounting Height: 7'6" Average Illumination: ~45 fc (30" AFF) Watts/sq. ft.: ~0.65 IES Recommended Footcandles (fc): fc (30" AFF) CONTROLS Most energy codes now require controlled luminaires within the Daylight Zones separately from those outside the zones. In addition, those luminaires within the zones must be controlled by automatic daylight sensing devices capable of either continuous dimming to at least 20% of light output, step switching of each lamp in individual luminaires, or step dimming of all lamps to 50% of light output, and must include an automatic OFF control. ADDITIONAL ENERGY SAVING STRATEGIES STRATEGY WATTS/LUMINAIRE SAVINGS LIGHT LEVELS Daylight dimming ballasts (Primary daylight zone) ~30w (dim to 50%) 50% Maintained from daylight Lower ballast factor ~48w (BF of 0.77) 12% 10% lower ENERGY CODE INFORMATION JURISDICTION CODE LIGHTING POWER ALLOWANCE (CLASSROOMS) Seattle 2009 Seattle Energy Code 0.99 w/sq. ft. Washington 2009 WSEC 1.00 w/sq. ft. Oregon 2010 OEESC 1.01 w/sq. ft. Idaho 2009 IECC 1.20 w/sq. ft. Montana 2009 IECC 1.20 w/sq. ft. LIGHTING LAYOUT : CLASSROOM T8 HP DIRECT/INDIRECT

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