Recessed. Combining a high quality appearance with versatility, the Recessed Luminaire range has been designed to suit most ceiling types.

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1 Recessed EXEMPLAR Pages GRIDPACK Pages PARAGON Pages UNIVERSAL ECLIPSE Pages SIGMA Pages ECLIPSE Pages UNIVERSAL MODULE Pages DROP ASKET ECLIPSE Pages IP UNIVERSAL MODULE Pages SPARTACUS Pages CONTINUOUS RUN MODULE Pages WALL WASHER Pages INTEGRA Combining a high quality appearance with versatility, the Recessed Luminaire range has been designed to suit most ceiling types. Pages An extensive range of diffusers and louvres, in conjunction with the latest intelligent lighting control and sensor technology, make the Recessed Luminaire range the perfect lighting solution for all high quality office and commercial applications

2 EXEMPLAR A range of contemporary, semi recessed luminaires, designed to help meet the latest LG7 addendum. The Exemplar range provides an attractive solution to recessed lighting installations. A 145 High frequency control gear supplied as Supplied with colour 840 lamps as Steel construction Opal side panels to aid with LG7 compliance S4: Mounting brackets. These must be ordered if fitting is to go into plasterboard ceiling X: Supplied excluding lamps Including Lamps - HF as Order Code Watt A Lamp EXE314HF840 3 x T5 EXE324HF840 3 x T5 EXE414HF840 4 x T5 EXE424HF840 4 x T5 Exemplar Part Code Formula: Product Number Lamp Gear Lamp Emergency Family of Lamps Watts Option Type Option EXE 3 14 HF 840 M3 Corridors Commercial applications Reception areas : AD: 1-10V Analogue Dimming SD: Retractive Switch Dimming DD: DSI Digital Dimming DL: DALI Addressable Dimming M3: 3hr Maintained Emergency 26 27

3 PARAGON The Paragon range of luminaires provides energy efficiency and can help with adherence to the latest LG7 addendum. Semi recessed side panels allow light out to the side of the luminaire, illuminating the ceiling giving a brighter, more attractive area. A 127 High frequency control gear supplied as P: Perforated side panels Including Lamps - HF as Order Code Watt A Lamp Steel construction ODP: Opal diffusing side panel PGN314HF840 3 x T5 P: Perforated side panels Solid side veins for commercial office interiors Perforated side panels available on request S4: Mounting brackets. These must be ordered if fitting is to go into plasterboard ceiling PGN324HF840 3 x T5 PGN414HF840 4 x T5 PGN424HF840 4 x T5 X: Supplied excluding lamps Paragon Part Code Formula: Product Number Lamp Gear Optional Lamp Emergency Family of Lamps Watts Option Feature Type Option PGN 3 14 HF P 840 M3 Corridors Commercial applications Reception areas : AD: 1-10V Analogue Dimming SD: Retractive Switch Dimming DD: DSI Digital Dimming DL: DALI Addressable Dimming M3: 3hr Maintained Emergency 28 29

4 IP30 IP40 SIGMA The Sigma range of recessed super-slim luminaires is designed using T5 lamp technology. This results in a super-slim profile of just 63mm. Sigma Squared 3 LAMP 4 LAMP Features high frequency control gear combined with high efficiency triphosphor lamps with superb Sigma Split LAMP 4 LAMP performance from the specular louvre High frequency control gear supplied as Slim 63mm profile T5 colour 840 lamps Highly specular anodised louvre SPL: Split louvres see opposite SS4: Sigma mounting brackets. These must be ordered if fitting is to go into plasterboard ceiling X: Supplied excluding lamps Including Lamps - HF as T5 Tube Order Code Watt Lamp SGR314HF840 3 x 14 T5 SGR324HF840 3 x 24 T5 SGR414HF840 4 x 14 T5 SGR424HF840 4 x 24 T5 Sigma Part Code Formula: Product Number Lamp Gear Optional Lamp Emergency Family of Lamps Watts Option Feature Type Option SGR 4 14 DD SPL 840 M3 Reception areas Commercial offices Doctors surgeries Meeting rooms Retail applications Sigma Squared Supplied as Sigma Split Suffix part number SPL AD: 1-10V Analogue Dimming SD: Retractive Switch Dimming DD: DSI Digital Dimming DL: DALI Addressable Dimming M3: 3hr Maintained Emergency LS3: LED 3hr Sustained Emergency 30 31

5 UNIVERSAL MODULE IP30 IP40 RECESSED FLUORESCENT LUMINAIRE For commercial and retail application High quality recessed luminaires available with a wide Designed and manufactured to comply with EN and is CE certified. range of attachments including aluminium louvres and framed diffusers, to suit the requirements of any ceiling type. For ease of installation and relamping, louvre attachments 40 L L1 106 for Stand. ody 120 for Deep ody 10 T8: 26mm Fluorescent Tubes PL-L: Compact Fluorescent hinge from the body of the luminaire to 60mm TAL LOUVRE The TAL louvre is manufactured from a satin anodised Miro material and conforms to category 2. It is therefore ideal for use in areas where VDT's are being used. Resiliant white finish High Frequency Control Gear Complies with SEN Rigid modular shape metalwork Fitted with fused terminal block TAL: LG (Cat2) louvre CAL: Framed low brightness louvre SAL: 16 cell Cat 2 louvre for use with PL lamps Excluding Lamps - HF as ody for use with TAL and CAL louvres and AFP, AFT and AFO diffusers Order Code Watt L L1 1 Lamp UVM218AHFX 2 x T8 UVM236AHFX 2 x T8 *UVM218HFX 2 x T8 CAL LOUVRE CAL is our low brightness aluminium louvre range. It has ribbed cross members with aluminium reflectors giving a space to height ratio greater than 1:1.75shr. This allows fewer luminaires to be used in a given area. SAL LOUVRE The SAL, sixteen cell louvre is designed to provide a high output Cat. 2 solution, when using compact fluorescent PL lamps. Manufactured from satin anodised Miro material, to suit the UVM deep box range. Suitable for 2 & 3 lamp PL3440 and 2 lamp PL55 configurations. Can be supplied complete with plugged modular mains cable assembly to assist with installation time and flexibility Can be supplied with digital electronic dimming control gear AFP: Framed prismatic cover AFT: Framed TP(a) diffuser AFO: Framed Opal cover S4: Suspension brackets (required for installation to plasterboard and metal pan ceilings) 840: Supplied with colour 840 lamps *UVM236HFX 2 x T8 UVM318HFX 3 x T8 UVM336HFX 3 x T8 UVM418HFX 4 x T8 UVM436HFX 4 x T8 UVM214AHFX 2 x T5 UVM228AHFX 2 x T5 *UVM214HFX 2 x T5 *UVM228HFX 2 x T5 UVM314HFX 3 x T5 UVM328HFX 3 x T5 UVM414HFX 4 x T5 UVM428HFX 4 x T5 For use with SAL Cat 2 Louvre Universal Module Part Code Formula: Product Number Lamp Gear Optional Lamp Emergency Family of Lamps Watts Option Feature Type Option UVM 4 14 DD TAL X M3 Order Code Watt L L1 1 Lamp UVM234DHFSALX 2 x PL-L UVM240DHFSALX 2 x PL-L UVM255DHFSALX 2 x PL-L UVM334DHFSALX 3 x PL-L UVM340DHFSALX 3 x PL-L * - denotes not for use with either TAL or CAL louvres Hotels Clean rooms Healthcare buildings Leisure centres AFO INTERNAL FRAMED FLAT OPAL PANEL An aluminium trim complete with opal diffuser that satisfies the requirements of Tp(b) material. Tp(a) quality is available on request, (AFT). Fitted with minimum 2.5mm Ultra Violet Stabilised material. AFPAFT INTERNAL FRAMED FLAT PRISMATIC PANEL An aluminium trim complete with prismatic diffuser that satisfies the requirements of Tp(b) material. Tp(a) quality is available on request, (AFT). Fitted with minimum 2.5mm Ultra Violet Stabilised material. Metal Pan 4 AD: 1-10V Analogue Dimming SD: Retractive Switch Dimming DD: DSI Digital Dimming DL: DALI Addressable Dimming M3: 3hr Maintained Emergency 32 33

6 IP30 IP40 IP UNIVERSAL MODULE RECESSED FLUORESCENT LUMINAIRE For commercial and retail application The IP Universal Module provides a range of Designed and manufactured to comply with EN and is CE certified. modular fittings with IP rated diffuser attachments. 40 L L1 106 for Stand. ody 10 T8: 26mm Fluorescent Tubes 1 26 to 60mm Resiliant white finish High frequency control gear Complies with SEN Rigid modular shape metalwork Fitted with fused terminal block IP40 version version IP65 version 54P: Framed attachment 65P: IP65 rated screw fastened front cover 40P: IP40 framed attachment S4: Suspension brackets (supplied as with 65P fitting - required for installation to plasterboard and metal pan ceilings) Excluding Lamps - HF as IP65 Attachment Order Code Watt L L1 1 Lamp UVM318HF65PX 3 x T8 UVM418HF65PX 4 x T8 UVM336HF65PX 3 x T8 UVM436HF65PX 4 x T8 UVM314HF65PX 3 x T5 UVM414HF65PX 4 x T5 UVM328HF65PX 3 x T5 UVM428HF65PX 4 x T5 IP65 VERSION VERSION Please note trim is unpainted aluminium Can be supplied complete with plugged modular mains cable assembly to assist with installation time and flexibility Can be supplied with digital electronic dimming control gear For cut out dimensions reduce nominal size by 40mm. 840: Supplied with colour 840 lamps Attachment Order Code Watt L L1 1 Lamp UVM318HF54PX 3 x T8 UVM418HF54PX 4 x T8 UVM336HF54PX 3 x T8 UVM436HF54PX 4 x T8 UVM314HF54PX 3 x T5 UVM414HF54PX 4 x T5 UVM328HF54PX 3 x T5 UVM428HF54PX 4 x T5 Universal Module Part Code Formula: Product Number Lamp Gear Optional Lamp Emergency Family of Lamps Watts Option Feature Type Option UVM 4 14 DD 65P X M3 IP40 Attachment IP30 IP40 Order Code Watt L L1 1 Lamp UVM318HF40PX 3 x T8 UVM418HF40PX 4 x T8 UVM336HF40PX 3 x T8 UVM436HF40PX 4 x T8 UVM314HF40PX 3 x T5 UVM414HF40PX 4 x T5 UVM328HF40PX 3 x T5 UVM428HF40PX 4 x T5 Hotels Clean rooms Healthcare buildings Leisure centres Metal Pan 4 AD: 1-10V Analogue Dimming SD: Retractive Switch Dimming DD: DSI Digital Dimming DL: DALI Addressable Dimming M3: 3hr Maintained Emergency LS3: LED 3hr Sustained Emergency 34 35

7 CONTINUOUS RUN MODULE IP30 IP40 For commercial and retail application A high quality recessed modular luminaire designed to be mounted in continuous linear arrays, for a seamless lighting effect. Designed and manufactured to comply with EN and is CE certified. L PL-L: Compact Fluorescent SINGLE LAMP L T8: 26mm Fluorescent Tubes 107 TWIN LAMP L 297 Available in T8, T5 and PL lamp versions Endplates available for end of runs or standalone installation Special sizes available please contact our Sales Department for further details CAL: Low brightness louvre CRMEPT: Endplates for twin fittings (Pair) CRMEPS: Endplates for single fittings (Pair) S4: Mounting brackets. These must be ordered if fitting is to go into plasterboard ceiling X: Supplied excluding lamps Including Lamps PL-L Tube - HF as Order Code Watt L W Lamp CRM2PL40HFCAL840 2 x PL-L CRM2PL55HFCAL840 2 x PL-L T5 Tube - HF as Order Code Watt L W Lamp CRM228HFCAL840 2 x T5 CRM254HFCAL840 2 x T5 CRM235HFCAL840 2 x T5 CRM249HFCAL840 2 x T5 T8 Tube - HF as Order Code Watt L W Lamp CRM236HFCAL840 2 x T8 CRM258HFCAL840 2 x T8 CRM270HFCAL840 2 x T8 Supermarkets Open plan offices Corridors Continuous Run Module Part Code Formula: Product Number Lamp Gear Optional Lamp Emergency Family of Lamps Watts Option Feature Type Option CRM 2 49 DD TAL 840 M3 AD: 1-10V Analogue Dimming SD: Retractive Switch Dimming (not available in 70W) DD: DSI Digital Dimming (not available in 70W) DL: DALI Addressable Dimming (not available in 70W) M3: 3hr Maintained Emergency 36 37

8 A 86 IP30 IP40 INTEGRA The Integra provides an economical high quality lighting solution, where 15mm and 24mm exposed T-bar ceilings are used. T8: 26mm Fluorescent Tubes A range of low cost attachments are also available, and can be installed 86 into the luminaire to allow very easy cleaning and maintenance. A 86 Tp(a) Diffuser Order Code Description DTA218A Tp(a) prismatic diffuser panel 600 x 300 DTA236A Tp(a) prismatic diffuser panel 1200 x 300 DTA418 Tp(a) prismatic diffuser panel 600 x 600 DTA436 Tp(a) prismatic diffuser panel 1200 x 600 MAL Low rightness Order Code Description MAL218A Mercury low brightness louvre 600 x 300 MAL236A Mercury low brightness louvre 1200 x 300 MAL318 Mercury low brightness louvre 600 x 600 MAL336 Mercury low brightness louvre 1200 x 600 MAL418 Mercury low brightness louvre 600 x 600 MAL436 Mercury low brightness louvre 1200 x 600 Schools Commercial applications ATTACHMENTS FOR THE INTEGRA RANGE (when ordered separately) - NOMINAL SIZES Tp(b) Diffuser Order Code Description DT218A Tp(b) prismatic diffuser panel 600 x 300 DT236A Tp(b) prismatic diffuser panel 1200 x 300 DT418 Tp(b) prismatic diffuser panel 600 x 600 DT436 Tp(b) prismatic diffuser panel 1200 x 600 Apollo Aluminium Cat2 Louvre Order Code Description AAL218A Apollo aluminium louvre 600 x 300 AAL236A Apollo aluminium louvre 1200 x 300 AAL318 Apollo aluminium louvre 600 x 600 AAL336 Apollo aluminium louvre 1200 x 600 AAL418 Apollo aluminium louvre 600 x 600 AAL436 Apollo aluminium louvre 1200 x 600 Rigid steel body Luminaire suitable for 15mm and 24mm exposed T grid system T5 lamp options available Supplied with Apollo aluminium louvre Half tile sizes are available (300mm wide) Plasterboard 6 MAL: Mercury low brightness louvre DTA: Tp(a) diffuser DT: Tp(b) diffuser 840: Supplied with colour 840 lamps Integra Part Code Formula: Product Number Lamp Gear Optional Lamp Emergency Family of Lamps Watts Option Feature Type Option IN 4 18 HF MAL X M3 Excluding Lamps T5 Tube - HF as Order Code Watt A Kg Lamp IN214AHFAALX 2 x T5 IN224AHFAALX 2 x T5 IN228AHFAALX 2 x T5 IN254AHFAALX 2 x T5 IN314HFAALX 3 x T5 IN324HFAALX 3 x T5 IN328HFAALX 3 x T5 IN354HFAALX 3 x T5 IN414HFAALX 4 x T5 IN424HFAALX 4 x T5 IN428HFAALX 4 x T5 IN454HFAALX 4 x T5 T8 Tube - SS as Order Code Watt A Kg Lamp IN218AAALX 2 x T8 IN236AAALX 2 x T8 IN318AALX 3 x T8 IN418AALX 4 x T8 IN336AALX 3 x T8 IN436AALX 4 x T8 HF: High Frequency AD: 1-10V Analogue Dimming SD: Retractive Switch Dimming DD: DSI Digital Dimming DL: DALI Addressable Dimming M3: 3hr Maintained Emergency 38 39

9 GRIDPACK The Gridpack provides an economical high quality lighting solution, where 15mm and 24mm exposed T-bar ceilings are used. T8: 26mm Fluorescent Tubes A 92 Rigid steel body Luminaire suitable for 15mm and 24mm exposed T grid system Supplied as with polished aluminium louvre and wishbone springs 840: Supplied with colour 840 lamps Excluding Lamps - SS as Order Code Watt A Kg Lamp GRD418AALX 4 x T8 Schools Commercial applications Gridpack Part Code Formula: Product Number Lamp Gear Optional Lamp Family of Lamps Watts Option Feature Type GRD 4 18 HF AAL X Plasterboard 6 HF: High Frequency M3: 3hr Maintained Emergency 40 41

10 UNIVERSAL ECLIPSE IP30 IP40 The Universal Eclipse is a popular and efficient alternative to louvred products, suitable for mounting in a concealed fix as well as exposed T bar ceilings. It is available with either a plain perforated diffuser or aluminium louvre. Ø20.5 CALE ENTRY PL-L: Compact Fluorescent This attractive luminaire creates a subtle lighting effect utilising a curved reflector system, which allows a combination of direct and indirect lighting and stylish design Ø20.5 CALE ENTRY 110 High frequency control gear supplied as 840: Supplied with colour 840 lamps Excluding Lamps - HF as Eclipse Steel construction Fitted with a fused terminal block Available with perforated downlight panel or double parabolic louvre insert S4: Mounting brackets. These must be ordered if fitting is to go into plasterboard ceiling For cut out size reduce nominal dimensions by 40mm Order Code Watt Kg Lamp ECA140HFX 1 x PL-L ECA155HFX 1 x PL-L ECA240HFX 2 x PL-L ECA255HFX 2 x PL-L Aluminium louvre ECA214HFX 2 x T5 ECA314HFX 3 x T5 ECA414HFX 4 x T5 ECA224HFX 2 x T5 ECA324HFX 3 x T5 ECA424HFX 4 x T5 Corridors Commercial applications Reception areas 42 Universal Eclipse Part Code Formula: Product Number Lamp Gear Lamp Emergency Family of Lamps Watts Option Type Option ECA 1 55 HF X M3 Fitted with SEN P-8 sensor : Eclipse Aluminium Louvre Order Code Watt Kg Lamp ECA140HFALX 1 x PL-L ECA155HFALX 1 x PL-L ECA240HFALX 2 x PL-L ECA255HFALX 2 x PL-L ECA214HFALX 2 x T5 ECA314HFALX 3 x T5 ECA414HFALX 4 x T5 ECA224HFALX 2 x T5 ECA324HFALX 3 x T5 ECA424HFALX 4 x T5 AD: 1-10V Analogue Dimming SD: Retractive Switch Dimming DD: DSI Digital Dimming DL: DALI Addressable Dimming M3: 3hr Maintained Emergency 43

11 IP30 IP40 ECLIPSE The Eclipse is a popular and efficient alternative to louvred products. It is available with either a plain perforated diffuser or aluminium louvre. PL-L: Compact Fluorescent This attractive luminaire creates a subtle lighting effect utilising 595 Ø20.5 CALE ENTRY a curved reflector system, which allows a combination of direct and indirect lighting and stylish design Corridors Commercial applications Reception areas 44 Aluminium louvre High frequency control gear supplied as Steel construction Fitted with a fused terminal block Available with perforated downlight panel or double parabolic louvre insert The ECE can be installed into 15mm and 24mm T-ar ceilings only FOR MOUNTING IN CONCEALED FIX APPLICATIONS PLEASE SEE THE UNIVERSAL ECLIPSE RANGE Eclipse Part Code Formula: 840: Supplied with colour 840 lamps Product Number Lamp Gear Lamp Emergency Family of Lamps Watts Option Type Option ECE 1 55 HF X M3 Fitted with SEN P-8 sensor (other sensors available) : Plasterboard 6 Excluding Lamps - HF as Eclipse Order Code Watt Lamp ECE140HFX 1 x 40 PL-L ECE155HFX 1 x 55 PL-L ECE240HFX 2 x 40 PL-L ECE255HFX 2 x 55 PL-L ECE214HFX 2 x 14 T5 ECE314HFX 3 x 14 T5 ECE414HFX 4 x 14 T5 ECE224HFX 2 x 24 T5 ECE324HFX 3 x 24 T5 ECE424HFX 4 x 24 T5 Eclipse Aluminium Louvre Order Code Watt Lamp ECE140HFALX 1 x 40 PL-L ECE155HFALX 1 x 55 PL-L ECE240HFALX 2 x 40 PL-L ECE255HFALX 2 x 55 PL-L ECE214HFALX 2 x 14 T5 ECE314HFALX 3 x 14 T5 ECE414HFALX 4 x 14 T5 ECE224HFALX 2 x 24 T5 ECE324HFALX 3 x 24 T5 ECE424HFALX 4 x 24 T5 AD: 1-10V Analogue Dimming SD: Retractive Switch Dimming DD: DSI Digital Dimming DL: DALI Addressable Dimming M3: 3hr Maintained Emergency 45

12 DROP ASKET ECLIPSE IP30 IP40 This attractive luminaire creates a subtle lighting effect utilising an involute reflector system, which allows a 97 combination of direct and indirect lighting combining fluorescent economy and stylish design. Shows sensitivity to the LG7 addendum. 199 Ø20.5 CALE ENTRY PL-L: Compact Fluorescent A 172 High frequency control gear supplied as 840: Supplied with colour 840 lamps Excluding Lamps - HF as Drop asket Eclipse Steel construction Fitted with a fused terminal block S4: Mounting brackets. These must be ordered if fitting is to go into plasterboard ceiling Order Code Watt A Lamp ECA140HFDX 1 x PL-L ECA155HFDX 1 x PL-L Louvred Eclipse Available with perforated downlight panel or double parabolic louvre insert For cut out size reduce nominal dimensions by 40mm ECA240HFDX 2 x PL-L ECA255HFDX 2 x PL-L Drop asket Eclipse with Double Parabolic Louvre Order Code Watt A Lamp ECA140HFDALX 1 x PL-L ECA155HFDALX 1 x PL-L ECA240HFDALX 2 x PL-L ECA255HFDALX 2 x PL-L Drop asket Eclipse Part Code Formula: Product Number Lamp Gear Drop Optional Lamp Emergency Family of Lamps Watts Option asket Feature Type Option ECA 1 55 HF D AL X M3 Corridors Commercial applications Reception areas : Metal Pan 4 AD: 1-10V Analogue Dimming SD: Retractive Switch Dimming DD: DSI Digital Dimming DL: DALI Addressable Dimming M3: 3hr Maintained Emergency 46 47

13 SPARTACUS IP30 IP40 For commercial and retail application A recessed contemporary styled luminaire with an Designed and manufactured to comply with EN and is CE certified. involute reflector system and perforated basket with louvre. For mounting within suspended ceiling L systems in any commercial interior.. W LAMPS 34 LAMPS Made from mild steel Perforated basket side rail detail with Cat 2 Louvre T5 colour 840 lamp High frequency control gear Fitted with a fused terminal block X: Supplied excluding lamps Including Lamps T5 Tube - HF as Order Code Watt L W Lamp SPT214HF840 2 x T5 SPT224HF840 2 x T5 SPT228HF840 2 x T5 SPT254HF840 2 x T5 SPT314HF840 3 x T5 SPT324HF840 3 x T5 SPT414HF840 4 x T5 SPT424HF840 4 x T5 Spartacus Part Code Formula: Product Number Lamp Gear Lamp Emergency Family of Lamps Watts Option Type Option SPT 2 54 DD 840 M3 oardrooms Meeting rooms Showrooms Plasterboard 6 AD: 1-10V Analogue Dimming SD: Retractive Switch Dimming DD: DSI Digital Dimming DL: DALI Addressable Dimming M3: 3hr Maintained Emergency 48 49

14 WALL WASHER IP30 IP40 A quality luminaire suitable for either surface mount or recessed installation designed to light wall mounted displays. PL-L: Compact Fluorescent A 70 High frequency control gear supplied as Supplied with colour 840 lamps Maunfactured from white epoxy powder coated steel Fitted with a aluminium reflector Available in 2 different body sizes White finish as Asymmetric distribution FT: Fused terminal block R: Recessed bezel for plasterboard ceiling complete with mounting brackets (must be ordered with fitting as the bezel cannot be retrofitted on site) X: Supplied excluding lamps Including Lamps - HF as Order Code Watt A Kg Lamp WW114HF840 1 x T5 WW128HF840 1 x T5 WW140HF840 1 x PL-L WW155HF840 1 x PL-L WW214HF840 2 x T5 WW228HF840 2 x T5 WW240HF840 2 x PL-L WW255HF840 2 x PL-L WW114AHF840 1 x T5 WW128AHF840 1 x T5 WW140AHF840 1 x PL-L WW155AHF840 1 x PL-L WW214AHF840 2 x T5 WW228AHF840 2 x T5 WW240AHF840 2 x PL-L WW255AHF840 2 x PL-L Schools Entrance lobbies Reception areas Corridors Wall Washer Part Code Formula: Product Number Lamp Gear Optional Lamp Family of Lamps Watts Option Feature Type WW 2 55 SD FT 840 Surface 4 AD: 1-10V Analogue Dimming SD: Retractive Switch Dimming DD: DSI Digital Dimming DL: DALI Addressable Dimming 50 51