GE Lighting GE ConstantColor CMH Precise MR16 2 & 35W DATA SHEE T TECHNOLOGY ConstantColor CMH lamps combine HPS technology (providing stability, efficiency & uniformity) and Metal Halide Technology (providing bright white quality light) to produce highly efficient light sources with good colour rendering and consistent colour performance through life. This is achieved by using the ceramic arc tube material from the Lucalox TM lamp, which minimises the chemical changes inside the lamp through life. GE has now miniaturized this technology resulting in the CMH Precise TM MR16, highly efficient 2 & 35 Watt lamps with the light quality and colour stability associated with Ceramic Metal Halide, in a size comparable to tungsten halogen reflector lamps, thus offering new energy saving options to the lighting designer and end user. FEATURES Consistent colour over life Excellent colour uniformity lamp to lamp Bright light in a very compact size Excellent colour rendition High reliability due to 3 part ceramic design Up to 56 beam Lumens per Watt (LPW) efficacy Long Life UV control 35W available in two colour temperatures Robust GX1 base APPLICATION AREAS Retail Offices Outdoor Lighting Display Cabinet Hotels Watts Operating position Length mm Order Code Cap Colour CBCP (cd) Rated Average Life hrs. Pack Qty Product Code 2 U 54.5 CMH2/MR16/UVC/83/GX1/SP GX1 83 9 12 12 44 2 U 54.5 CMH2/MR16/UVC/83/GX1/FL GX1 83 29 12 12 441 2 U 54.5 CMH2/MR16/UVC/83/GX1/WFL GX1 83 15 12 12 42691 35 U 54.5 CMH35/MR16/UVC/93/GX1/SP GX1 93 16 1* 12 88658 35 U 54.5 CMH35/MR16/UVC/93/GX1/FL GX1 93 55 1* 12 88659 35 U 54.5 CMH35/MR16/UVC/93/GX1/WFL GX1 93 3 1* 12 8866 35 U 54.5 CMH35/MR16/UVC/942/GX1/SP GX1 942 16 12* 12 88661 35 U 54.5 CMH35/MR16/UVC/942/GX1/FL GX1 942 55 12* 12 88662 35 U 54.5 CMH35/MR16/UVC/942/GX1/WFL GX1 942 3 12* 12 88663 * Initial rating at time of launch. Testing continues to establish final design life.
General Product code 44 441 42691 88658 88659 8866 88661 88662 88663 Nominal wattage 2W 2W 2W 35W 35W 35W 35W 35W 35W Format MR16 MR16 MR16 MR16 MR16 MR16 MR16 MR16 MR16 Bulb type MR16 MR16 MR16 MR16 MR16 MR16 MR16 MR16 MR16 Bulb diameter 51 mm 51 mm 51 mm 51 mm 51 mm 51 mm 51 mm 51 mm 51 mm Bulb material Bulb finish Aluminized Aluminized Aluminized Aluminized Aluminized Aluminized Aluminized Aluminized Aluminized Arc Gap N/A N/A N/A N/A N/A N/A N/A N/A N/A Base GX1 GX1 GX1 GX1 GX1 GX1 GX1 GX1 GX1 Operating Conditions Burning Pos n Universal Universal Universal Universal Universal Universal Universal Universal Universal Luminaire Open Open Open Open Open Open Open Open Open Electrical Characteristics Power 2W 2W 2W 39W 39W 39W 39W 39W 39W Voltage 95V 95V 95V 9V 9V 9V 9V 9V 9V Current.21A.21A.21A.42A.42A.42A.42A.42A.42A Max ignition voltage 4kV 4kV 4kV 5kV 5kV 5kV 5kV 5kV 5kV Min ignition voltage 3kV 3kV 3kV 3kV 3kV 3kV 3kV 3kV 3kV Extinction voltage 8% 8% 8% 9% 9% 9% 9% 9% 9% Photometric characteristics Beam Angle 12 o Spot 25 o Flood 4 o Wide Flood 12 o Spot 25 o Flood 4 o Wide Flood 12 o Spot 25 o Flood 4 o Wide Flood CBCP 9 29 15 16 55 3 16 55 3 lumens 1 1 1 22 22 22 22 22 22 CCT 3K 3K 3K 3K 3K 3K 4K 4K 4K CCx.431.431.431.444.444.444.383.383.383 CCy.43.43.43.41.41.41.37.37.37 CRI 81 81 81 9 9 9 92 92 92 Luminous efficacy 5 LPW 5 LPW 5 LPW 56 LPW 56 LPW 56 LPW 56 LPW 56 LPW 56 LPW Starting and Warm-up Characteristics Time to start @ 1C, sec <5 <5 <5 <5 <5 <5 <5 <5 <5 Time to start @ -15C, sec <15 <15 <15 <15 <15 <15 <15 <15 <15 Hot restart time, min <4 <4 <4 <6.5 <6.5 <6.5 <6.5 <6.5 <6.5 Warm-up to time to 9% lumen output, min Maximum Operating Condition <1.5 <1.5 <1.5 <1.5 <1.5 <1.5 <1.5 <1.5 <1.5 Max bulb temperature 1 2ºC 2ºC 2ºC 3ºC 3ºC 3ºC 3ºC 3ºC 3ºC Max base temperature 2 2ºC 2ºC 2ºC 3ºC 3ºC 3ºC 3ºC 3ºC 3ºC 1 Measured at centre of MR16 lens, in vertical base-up position 2 Measured on 25mm GX1 ceramic cap rim, at transition to 23mm diameter 2
Dimensions 44 441 42691 88658 88659 8866 88661 88662 88663 A (max), mm 54.5 54.5 54.5 54.5 54.5 54.5 54.5 54.5 54.5 B (max), mm 51 51 51 51 51 51 51 51 51 C (max), mm 3.5 3.5 3.5 3.5 3.5 3.5 3.5 3.5 3.5 D (max), mm 14 14 14 14 14 14 14 14 14 Spectral Power Distribution Spectral Power Distribution curves are given in the following diagrams. Spectral Power Distribution CMH2MR16/83 Relative intensity m/w/nm/1lm 38 4 42 44 46 47 5 52 54 56 58 6 62 64 66 68 7 72 74 76 Wavelength Spectral Power Distribution CMH35MR16/93 Spectral Power Distribution CMH35MR16/942 38 4 42 44 46 47 5 52 54 56 58 6 62 64 66 68 7 72 74 76 38 4 42 44 46 47 5 52 54 56 58 6 62 64 66 68 7 72 74 76 Relative intensity Relative intensity Wavelength Wavelength 3
Distribution of lumionous intensity The following diagrams show polar light intensity curves and beam diagrams for vertical base-up orientation CMH2W MR16 SP Candela Power Distribution 9 1 2 25% Max 3 4 5 5% Max 6 7 8 9 1 1% Max 11 12 CMH2W MR16 FL Candela Power Distribution 9 2 4 6 25% Max 8 1 12 14 5% Max 16 18 2 22 24 26 28 1% Max 3 32 CMH2W MR16 CMH2W WFL MR16 Candela SP4 Power Candala Distribution Power Distribution 9 9 2 2 25% Max 4 6 8 1 12 14 16 18 4 6 8 1 12 14 16 18 25% Max 5% Max 5% Max 1% Max 1% Max 1 2 3 4 5 6 7 8 9 1 11 12 13 14 15 16 17 18 CMH 35 W/MR16/93/SP Candela Power Distribution 25% Max 1 25% Max 15 5% Max 1% Max 9 5 2 25 3 35 4 45 5 55 6 65 CMH 35 W/MR16/93/FL Candela Power Distribution 5% Max 1% Max 9 4
CMH 35 W/MR16/93/WFL Candela Power Distribution 2 4 6 25% Max 8 1 12 5% Max 14 16 18 2 22 24 9 CMH 35 W/MR16/942/SP Candela Power Distribution 1 2 3 25% Max 4 5 6 5% Max 7 8 9 1 11 12 13 9 26 14 28 3 32 34 1% Max 15 16 17 18 5 1 CMH 35 W/MR16/942/FL Candela Power Distribution 9 2 4 25% Max 25% Max 6 CMH 35 W/MR16/942/WFL Candela Power Distribution 9 15 2 25 5% Max 8 1 12 14 5% Max 3 16 35 4 45 5 18 2 22 24 26 28 55 6 65 1% Max 3 32 34 1% Max 5
Beam diagrams CMH2/MR16/UVC/83/GX1/SP CMH2/MR16/UVC/83/GX1/FL 47744 Degrees Nominal beam angle degrees = 1.7 11936.5 Meters.94.94 535 1. Meters.188.188 2984 1.5 Meters.282.282 191 2. Meters.376.376 1326 2.5 Meters.469.469 974 3. Meters.563.563 746 3.5 Meters.657.657 589 4. Meters Distance Circle From lamp 5. Meters.751.751 477 4.5 Meters.845.845.939.939 Degrees Nominal beam angle degrees = 26.3 Distance Circle 1364 From lamp 3266.5 Meters.233.233 1452 1. Meters.467.467 816 1.5 Meters.7.7 523 2. Meters.934.934 363 2.5 Meters 1.167 1.167 267 3. Meters 1.4 1.4 24 3.5 Meters 1.634 1.634 161 4. Meters 1.867 1.867 131 4.5 Meters 2.11 2.11 5. Meters 2.334 2.334.939 CMH2/MR16/UVC/83/GX1/WFL 2.334 CMH35/MR16/UVC/93/GX1/SP Degrees Nominal beam angle degrees = 41.9 Distance Circle 674 From lamp 1685.5 Meters.383.383 749 1. Meters.765.765 421 1.5 Meters 1.148 1.148 27 2. Meters 1.53 1.53 187 2.5 Meters 1.913 1.913 138 3. Meters 2.296 2.296 15 3.5 Meters 2.678 2.678 83 4. Meters 3.61 3.61 67 4.5 Meters 3.443 3.443 5. Meters 3.826 3.826 Degrees Nominal beam angle degrees = 12.5 Distance Circle 6898 From lamp 1724.5 Meters.19.19 7566 1. Meters.218.218 4256 1.5 Meters.327 1.327 2724 2. Meters.437 1.437 1892 2.5 Meters.546 1.546 139 3. Meters.655 2.655 164 3.5 Meters.764 2.764 841 4. Meters.873.873 681 4.5 Meters.982.982 5. Meters 1.92 1.92 3.826 CMH35/MR16/UVC/93/GX1/FL 1.92 CMH35/MR16/UVC/93/GX1/WFL Degrees Nominal beam angle degrees = 28.1 Distance Circle 24116 From lamp 629.5 Meters.25.25 268 1. Meters.5.5 157 1.5 Meters.751.751 965 2. Meters 1.1 1.1 67 2.5 Meters 1.251 1.251 492 3. Meters 1.51 1.51 377 3.5 Meters 1.752 1.752 298 4. Meters 2.2 2.2 241 4.5 Meters 2.252 2.252 5. Meters 2.52 2.52 Degrees Nominal beam angle degrees = 41.9 Distance Circle 13193 From lamp 3298.5 Meters.383.383 1466 1. Meters.766.766 825 1.5 Meters 1.149 1.149 528 2. Meters 1.532 1.532 366 2.5 Meters 1.915 1.915 269 3. Meters 2.298 2.298 26 3.5 Meters 2.68 2.68 163 4. Meters 3.63 3.63 132 4.5 Meters 3.446 3.446 5. Meters 3.829 3.829 6 2.52 3.829
CMH35/MR16/UVC/942/GX1/SP 69492 Degrees Nominal beam angle degrees = 12.9 17373.5 Meters.113.113 7721 1. Meters.226.226 4343 1.5 Meters.339.339 278 2. Meters.452.452 193 2.5 Meters.565.565 1418 3. Meters.678.678 186 3.5 Meters.791.791 858 4. Meters Distance Circle From lamp 5. Meters.94.94 695 4.5 Meters.17.17 1.13 1.13 1.13 CMH35/MR16/UVC/942/GX1/FL Degrees Nominal beam angle degrees = 28.7 Distance Circle 24669 From lamp 6167.5 Meters.256.256 2741 1. Meters.512.512 1542 1.5 Meters.768.768 987 2. Meters 1.24 1.24 685 2.5 Meters 1.28 1.28 53 3. Meters 1.536 1.536 385 3.5 Meters 1.792 1.792 35 4. Meters 2.48 2.48 247 4.5 Meters 2.34 2.34 5. Meters 2.56 2.56 2.56 CMH35/MR16/UVC/942/GX1/WFL Degrees Nominal beam angle degrees = 41.9 Distance Circle 14633 From lamp 3658.5 Meters.382.382 1626 1. Meters.765.765 915 1.5 Meters 1.147 1.147 585 2. Meters 1.53 1.53 46 2.5 Meters 1.912 1.912 299 3. Meters 2.295 2.295 229 3.5 Meters 2.677 2.677 181 4. Meters 3.6 3.6 146 4.5 Meters 3.442 3.442 5. Meters 3.825 3.825 3.825 7
Lamp life Life survival graphs are shown for statistically representative batches of lamps operated under controlled nominal conditions with a 11 hours per start switching cycle. Declared lamp life is the median value, i.e. when 5% of lamps from a large sample batch would have failed. Lamp life in service is affected by a number of parameters, including supply voltage variation, switching cycle, operating position, mechanical vibration, luminaire design and control gear. The information provided is intended to be a practical guide for comparison with other lamp types. Determination of lamp replacement schedules will depend upon relative costs of spot or group replacement and acceptable reduction in lighting levels. Note: Representative curves are shown for Vertical Base-Up lamp orientation unless otherwise specified. Life performance increases in the Horizontal burning position. 1% CMH2MR16/83 Lamp survival 8% % Lamp Survival 6% 4% 2% % 2 4 6 8 1 12 Burning time (thousand hours) 1% CMH35MR16/93 Lamp survival* 1% CMH35MR16/942 Lamp survival* 8% 8% % Lamp Survival 6% 4% % Lamp Survival 6% 4% 2% 2% % % 2 4 6 8 1 Burning time (thousand hours) 2 4 6 8 1 12 Burning time (thousand hours) * Initial rating at time of launch. Testing continues to establish final design life. 8
Lumen maintenance Lumen maintenance graphs show light output performance through life for statistically representative batches of lamps operated under controlled nominal conditions with a 11 hours per start switching cycle. A common characteristic for all metal halide lamps is a reduction in light output and a slight increase in power consumption through life. Consequently there is an economic life at which lamp efficacy falls to a level when lamps should be replaced to restore design illumination levels. Where a quantity of lamps are installed within an area, consideration should given to a group lamp replacement programme to maintain uniform illumination levels. Curves represent operating conditions for a 11 hours per start switching cycle, but less frequent switching will improve lumen maintenance. Note: The representative curves are shown for Vertical Base-Up lamp orientation unless otherwise specified. Lumen maintenance performance improves when operated in the Horizontal burning position. 1 CMH2MR16/83 Lumen Maintenance 1 CMH35MR16/93 Lumen Maintenance (%) of original 8 6 4 2 (%) of original 8 6 4 2 2 4 6 8 1 12 Burning Time (thousand hours) 2 4 6 8 1 Burning time (thousand hours) 1 CMH35MR16/942 Lumen Maintenance 8 (%) of original 6 4 2 2 4 6 8 1 12 Burning time (thousand hours) Warm-up characteristics During the warm-up period immediately after starting, lamp temperature increases rapidly evaporating mercury and metal halide dose in the arc-tube. Lamp electrical characteristics and light output stabilise in less than 4 minutes. During this period light output increases from zero to full output and colour approaches the final visual effect as each metallic element becomes vaporised. Percentage of Final Value (after 15 minutes) CMH 2W MR16 Typical Warm-up characteristic 16 14 12 1 8 6 Lamp power Lamp voltage 4 Lamp current 2 Lamp lumens 1 2 3 4 Time from Switch-On (minutes) Percentage of Final Value (after 15 minutes) CMH 35W MR16 Typical Warm-up characteristic 16 14 12 1 8 6 Lamp power Lamp voltage 4 Lamp current 2 Lamp lumens 1 2 3 4 Time from Switch-On (minutes) 9
DIMMING In certain cases, dimming may be acceptable, subject to further testing. Contact your GE representative for more information. Large changes in lamp power alter the thermal characteristics of the lamp resulting in lamp colour shift and possible reduction in lamp survival. FLICKER Suitable electronic ballasts for ConstantColor TM CMH lamps provide square wave operation in the 7-4 Hz range and eliminate perceptible flicker. END-OF-LIFE CONDITIONS The principal end-of-life failure mechanism for CMH lamps is arc tube leakage into the outer jacket. High operating temperature inside the arc tube causes metal halide dose material to gradually corrode through the ceramic arc tube wall, eventually resulting at normal end-of-life in leakage of the filling gas and dose. Arc tube leakage into the outer jacket can be observed by a sudden and significant lumen drop and a perceptible colour change (usually towards green). The above situation can be accompanied by the so-called rectification phenomena. This occurs where a discharge is established between two mount-frame parts of different material and/or mass, causing asymmetry in the electrical characteristic of the resulting discharge current. Rectification can lead to overheating of the ballast, therefore to maintain safety use electronic ballast or system which can shut itself off if ballast overheating occurs. END OF LIFE CYCLING A possible condition can exist at end-of-life whereby lamp voltage rises to a value exceeding the voltage supplied by the control gear. In such a case the lamp extinguishes and on cooling restarts when the required ignition voltage falls to the actual pulse voltage provided by the gear. During subsequent warm-up the lamp voltage will again increase, causing extinction. This condition is known as end-of-life cycling. With electronic ballasts, cycling is unlikely. Normally cycling is an indication that lamp end-of-life has been reached, but it can also occur when lamps are operated above their recommended temperature. Lamp voltage at 1 hours life should not increase by more than 5V when operating in the luminaire, when compared to the same lamp operating in free-air. A good luminaire design will limit lamp voltage rise to 3V. It is good practice to replace lamps that have reached end-of-life as soon as possible after failure, to minimise electrical and thermal stress on control gear components 1
UV and damage to sensitive materials The wall of the bulb, which is produced with specially developed UV Control material, absorbs potentially harmful high energy UV radiation emitted by the ceramic arc tube. The use of UV control material allows the lamp to significantly reduce the risk of discolouration or fading of products. When illuminating light-sensitive materials or at high light levels, additional UV filtration is recommended. Luminaires should not be used if the front is broken or missing. Although PET determines limits of human exposure to lamp UV, the risk of fading of merchandise due to UV can be quantified by a Damage Factor and a Risk of Fading. The risk of fading is simply the numerical product of the illuminance, exposure time and damage factor due to the light source. Finally the selection of luminaire materials should take into consideration the UV emission. Current UV reduction types on the market are optimised for UV safety of human eye and skin exposure. However, luminaire materials may have different wavelength dependent response functions. Designers must take account of emission in each of the UV-A, UV-B and UV-C spectral ranges as well as material temperatures when designing luminaires. Typical values for UV-A, UV-B and UV-C range radiation can be found in the table below. UV and damage to sensitive materials UV PET performance Data from bare lamp Product name UV-C 1 UV-B 1 UV-A 1 UVC/UVA UVB/UVA E eff 2 PET (h) Risk Group 2-28 nm 28-315 nm 315-4 nm CMH2MR16/83,14,6 6,65,2,1,18 939 Exempt CMH35MR16/93,3,2 4,344,1,,1 1765 Exempt CMH35MR16/942.3,5 12,764,,,24 723 Exempt 1 μ W / (cm 2 ) / 5 Lux 2 mw / (m 2 * klx) Information for luminaire design Electronic ballast operation CMH 2W and CMH 35W have optimum performance on electronic gear.* This provides many advantages: Flicker free light output Well controlled electronic ignition process Simple wiring for fixtures due to elimination of ignitor and PFC capacitor Reduces fixture weight Automatic sensing of failed lamps and shutdown Lower overall system power consumption * For details of approved electronic ballasts for ConstantColor CMH lamps please consult your GE representative. CMH 2W is designed only for operation on electronic gear Circuit diagram electronic ballast LH: Lamp Holder E: Electronic Gear Containment Requirement ConstantColor CMH Precise MR16 lamps may be used in open fixtures. 11
CONTROL GEAR AND ACCESSORIES Electronic Ballasts A range of GE electronic ballasts have been introduced to complement the 2 and 35W ConstantColor Ceramic Metal Halide lamps Power controlled electronic ballasts suitable for operation of Ceramic Metal Halide lamps are available from various gear manufacturers. Please consult GE for up to date details of approved ballast types. Advantages are: Good regulation against supply voltage variation Improved lamp colour consistency Elimination of lamp flicker Reduced weight of control gear Reduced electrical power losses Ballast noise reduced/eliminated Single piece compact unit Reduced wiring complexity in the luminaire Safety warnings Warning! The use of these products requires awareness of the following safety issues: Risk of electric shock - isolate from power supply before changing lamp Strong magnetic fields may impair lamp performance and worst case can lead to lamps shattering Risk of fire A damaged lamp emits UV radiation which may cause eye/skin injury Caution Risk of burn when handling hot lamp Lamp may shatter and cause injury if broken Arc tube fill gas contains Kr-85 Always follow the supplied lamp operation and handling instructions. www.gelighting.com/eu and General Electric are both registered trademarks of the General Electric Company GE Lighting is constantly developing and improving its products. For this reason, all product descriptions in this brochure are intended as a general guide, and we may change specifications time to time in the interest of product development, without prior notification or public announcement. All descriptions in this publication present only general particulars of the goods to which they refer and shall not form part of any contract. Data in this guide has been obtained in controlled experimental conditions. However, GE Lighting cannot accept any liability arising from the reliance on such data to the extent permitted by law. CMH MR16 Datasheet October 29