LD41 LIGHTGRAPHIX | Alldatasheet
Document overview
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Technical content
Page 1 of 5 | Data sheet issued: 8 April 2026 > High-power C1 engine with NICHIA LED, delivering up to 188 lumens and CRI of 90+ > Minimal bezel and recess depth producing, excellent diffused beam shape from a range of optics > Machined from a solid billet of stainless steel 316, also available in polished & passivated 316 stainless steel and powder coat paint finishes; White (RAL 9016), BLack (RAL 9005), Classic Bronze (YM262E), Gunmetal Grey (RAL 7021) or any RAL colour > Can be used as an uplight or wall light and specified with frosted glass for indicator applications (a wide beam works best for this effect) > Fixing options include O-rings and a first fix sleeve or bonding directly into the mounting surface > Contains our integral moisture guard (anti-wicking barrier), stopping water ingress from going up the cable into the product from incorrect IP-rated connections > Not designed for permanent submersion, please use our LD242A > Switched, 0-10V, Casambi, DMX, DALI or Mains dimmable drivers available For detailed fixing dimensions please go to page 3. KEY FEATURES Dimensions in mmDIMENSIONS Design: PJC Lighting Project: Demelza Hospice Product: LD41 Ø34 LD41 MINIATURE RECESSED LED UPLIGHT/ WALL LIGHT Our smallest fitting with a bezel diameter of just 34mm, the LD41 is a very tough, miniature fitting. It can be run up to 1.7W, and comes with a choice of beam angles making it suitable for a wide range of applications.
Page 2 of 5 | Data sheet issued: 8 April 2026 WHITE LED ENGINE SPECIFICATION Engine C1 Beam angles 12°, 31°, 48°, 12° x 36° LED manufacturer NICHIA Colour temperature 2200K / 2700K / 3000K / 4000K / 5000K Current 350mA 500mA LED power (Max)** 1.2W 1.7W Delivered lumens (L 100)* 108 141 Lumens per circuit watt 90 83 Forward voltage (V 100) 3V 3.2V CRI (Typ) 93 Colour consistency 2 SCDM Peak intensity 1145 cd LED Lumens 157lm LOR 0.91 TM30 RF93 RG99 UGR*** 19.2 LED lifetime L90B5 at 90,000hrs
Applications
This data is based on LD41-C1-500-LW30-NB *Lumen output data applies to all colour temperatures Indicates the nominal power for the LED run at that particular current and includes losses associated with using an 85% efficient driver *UGR values based on room parameters of 4H 8H, C70 W50 F20 ENVIRONMENTAL TM65 Available on request TM66 2.7 Repair + Refurbish This product is included in our Repair and Refurbish scheme. This offers customers the ability to send back products to us for repair or refurbishment to extend their life without having to buy new fittings. RLE (REPLACEABLE LIGHT ENGINE) Visit page 4 for replacement parts 1 350mA 500mA Ambient temperature 55°C -20°C to 55°C -20°C to 55°C Glass 5mm thick borosilicate Materials Machine finish, solid 316 stainless steel Weight of product 0.015kg IP rating IP68 - not for permanent submersion (use LD242A) Wiring In-series constant current wiring (pre-wired with 2 x single core cable at a length of 100mm) MECHANICAL
Page 3 of 5 | Data sheet issued: 8 April 2026 Please refer to our finishes guide for full details AVAILABLE FINISHES DIMENSIONS AND FIXING ACCESSORIES Dimensions in mm /480GT Ground tube The in-ground tube has been designed for applications where a recessed uplight is required in soil or gravel terrains. The tube can be buried with the necessary wiring, and then the fitting installed after the landscaping work has been completed. It is supplied with the fixing sleeve bonded into the tube, and can be cut down on site. Scaled Drawings. Use common elemtents, such as surfaces. But keep cables to scale. Reduce lines, simplify drawing. 87% /480 Fixing Sleeve with ‘O’ rings Cut-Out Ø32 Ø34 Ø27.5 31 1 31 1.8 Ø27.5 Ø34 Ø27.5 Ø34 Scaled Drawings. Use common elemtents, such as surfaces. But keep cables to scale. Reduce lines, simplify drawing. 87% /480 Fixing Sleeve with ‘O’ rings Cut-Out Ø32 Ø34 Ø27.5 31 1 31 1.8 Ø27.5 Ø34 /480 O-rings and sleeve A more robust and water tight method of fixing, for in ground applications. Ø52 Ø34 Ø81 /484GT In-ground Tube 25 25 25 Ø36.6 Ø50 Ø83.3 200 220 300 0.8 0.8 0.75 /476GT In-ground Tube /480GT In-ground Tube 0.8 200 Scaled Drawings. Use common elemtents, such as surfaces. But keep cables to scale. Reduce lines, simplify drawing. 87% /480 Fixing Sleeve with ‘O’ rings Cut-Out Ø32 Ø34 Ø27.5 31 1 31 1.8 Ø27.5 Ø34 Scaled Drawings. Use common elemtents, such as surfaces. But keep cables to scale. Reduce lines, simplify drawing. 87% /480 Fixing Sleeve with ‘O’ rings Cut-Out Ø32 Ø34 Ø27.5 31 1 31 1.8 Ø27.5 Ø34 Cut-out Ø32 Ø27.5 1.8 Ø34 POLISHED & PASSIVATED
316 STAINLESS STEEL
Marine Grade 316 Steel > Mirror like finish > Extremely durable > Passivated to extensively prolong resistance to corrosion and brown stains caused by oxidation in marine environments > Interior & exterior use
Marine grade 316 Steel > Standard machined finish > Extremely durable > Passivation recommended for marine environments to prevent corrosion and build up of brown stains caused by oxidation > Interior & exterior use PAINT FINISH - POWDER COAT > White (RAL 9016), Black (RAL 9005), Classic Bronze (YM262E), Gunmetal Grey (RAL 7021) and other RAL colours available > Smooth matt texture unless stated otherwise > Not recommended for footlights in high traffic areas > Interior & exterior use
Page 4 of 5 | Data sheet issued: 8 April 2026 RLE - REPLACEABLE LIGHT ENGINESRLE - REPLACEABLE LIGHT ENGINES LD43DR RLE REPLACEMENT PARTS Please use the configurator below to specify your replacement engine and optic. If you are unsure of your original specifications, please check the label on your LightGraphix fitting, or get in touch with our sales team. Installation sheets will be supplied with the new components. RLE Engine LED Colour Beam Angle Accessories RLE 1 ENGINE RLE1/ Super Warm White (2200K) /LW22 Extra Warm White (2700K) /LW27 Warm White (3000K) /LW30 White (4000K) - on request /LW40 Cool White (5000K) /LW50 Narrow beam 16mm optic RLE/OP-16/NB O-ring RLE/OR2 Threaded back plate RLE/TBP What is RLE On the surface, RLE is LightGraphix’s answer to the Circular economy question that is facing many industries at the moment. However for us, RLE is an ethos; a commitment that LightGraphix will factor in the principles of good circular design into all of its future product design. It allows us to offer luminaires that contain replaceable, energy-efficient light engines. This gives customers the ability to refurbish existing lighting installations rather have having to replace the entire luminaire. This will fall into two types of refurbishments: replaceable, and repairable. RLE Engines Repairs can be conducted on any site worldwide, or in our factory, with a small tool. Simply swap out the singular modular LED insert, and replace it with another, along with a new optic, which are both supplied by us. The warranty provided with the product with vary based on who is performing RLE repairs. There are three types of RLE engine, categorised based on the size of the product. RLE1 is the smallest, with RLE3 being the largest. Threaded back plate RLE 1 ENGINE HeatsinkOptic LED O-ring RLE1/
Page 5 of 5 | Data sheet issued: 8 April 2026 ORDER CODES & OPTIONSORDER CODES & OPTIONS Example: LD41-C1-700/LW30/MB/316 Stainless Steel/480 /480 /480GT Light Engine & Drive Current LD41 - / LED Colour Beam Angle Fixing & Accessories Finish Drivers Use with 350mA & 500mA constant current LED drivers We have a range of dimmable LED drivers DMX and DALI compatible. Please see the downloads section on our website. WHITE LED ENGINESWHITE LED ENGINES 1.2W LED at 350mA LD41-C1-350 1.7W LED at 500mA LD41-C1-500 Super Warm White (2200K) /LW22 Extra Warm White (2700K) /LW27 Warm White (3000K) /LW30 White (4000K) on request /LW40 Cool White (5000K) /LW50 Red /LR Green /LG Blue /LB Amber /LA 12° Narrow spot /NB 31° Medium /MB 48° Wide /WB 12 x 36° Oval /OB Polished & Passivated (for marine environments) Powder Coat Black (RAL 9005) Powder Coat Classic Bronze (YM262E) Powder Coat Gunmetal Grey (RAL 7021) Powder Coat White (RAL 9016) Powder Coat RAL Ambient temperature key: 55°C