4.5 Inch 50W Super Bright COB LED Work Light SLL-C4550-50W
The SLL-C4550-50W is a 4.5 inch COB LED work light designed for machines that operate in extreme conditions, including off-road vehicles, excavators, forklifts, and mining machinery. It delivers 4000 rated lumens with a spot or flood beam pattern, using a single 50W COB LED that operates reliably across 9-32V DC systems. The die-cast aluminium housing is sealed to IP68 and tested to withstand 1 meter of water depth for 30 minutes, ensuring performance during pressure washing and heavy rain. The 304 stainless steel bracket resists corrosion on machines exposed to salt, fuel, or chemical residues.
- 4000 rated lumens from a single 50W COB LED provide bright, uniform illumination across the work area
- IP68 sealing tested at 1 meter depth for 30 minutes prevents water ingress during pressure washing
- 304 stainless steel bracket (3.0mm thick) resists corrosion on machines washed daily with salt or chemicals
- 9-32V DC operating range supports both 12V and 24V systems, reducing SKU count for fleet operators
- Lifespan of more than 50000 hours means replacement is measured in years, not months
Where This Lamp Is Used
- Front and side work lighting on excavators and dozers operating in low-light or dusty environments
- Cab and hood lighting on off-road vehicles like ATVs, UTVs, and sand rails used in remote areas
- Auxiliary lighting on forklifts and mining trucks where vibration and dust degrade standard lamps
- Emergency vehicle lighting on fire engines and rescue vehicles requiring high visibility and durability
- Deck and underbody lighting on boats and utility vehicles exposed to saltwater and frequent washing
Who It Is For
- Machinery OEMs fitting work lights on production lines needing consistent mounting and electrical specs
- Fleet operators replacing halogen lamps that fail under vibration and draw excessive current
- Distributors sourcing a single model with dual beam options to serve multiple vehicle types
- 4x4 accessory brands building a private label range with customizable branding and packaging
- Equipment dealers supplying lighting for mining, construction, and agricultural machinery
Problems It Solves
- Halogen work lights fail quickly under vibration and draw more current than the alternator can support
- Cheap sealed lamps allow water in through the cable entry and fog up after a few wash cycles
- Narrow beam lamps leave the near edge of the machine in shadow, increasing accident risk
- Non-uniform light patterns with cold spots reduce visibility in critical work zones
- Painted mild steel brackets rust within weeks on machines washed with saltwater or fertiliser
Technical Features
- Single 50W COB LED with a rated output of 4000 lumens and 6000K colour temperature
- Beam pattern available as spot or flood, selected at time of order
- Anti-scratch polycarbonate lens over the LED array with UV protection
- 304 stainless steel bracket, 3.0mm thick, with 304 stainless steel bolts and screws
- Operating voltage range of 9-32V DC, compatible with 12V and 24V systems
- Cable entry with sealed gland and bare wire lead of 40cm as standard
- Working temperature range of -40 to +80 degrees Celsius
- 360 degree adjustable mounting with bottom bracket for upright or pendant installation
- No cold spots due to professional COB light source design and uniform beam pattern
Technical Specification
Values taken from the original factory specification for this model. Fields the factory sheet does not state are left out rather than estimated.
| Part Number | SLL-C4550-50W |
|---|---|
| Max Power | 50W |
| Real Power | 50W |
| LED | 1 x 50W COB |
| Theoretical Lumen | 4000 lm |
| Rated Lumen | 4000 lm |
| Beam Pattern | Spot or Flood |
| Colour Temperature | 6000K |
| Operating Voltage | 9-32V DC |
| Lens Material | Anti-scratch PC |
| Bracket Material | 304 stainless steel, 3.0mm thickness |
| Mounting | Bottom mount, 360 degree adjustable, bracket width 115mm |
| Waterproof Rating | IP68 |
| Operating Temperature | -40 to +80 degrees Celsius |
| Electrical Connection | Bare wire 40cm, sealed gland |
| Lifetime | More than 50000 hours |
| Size | 115 x 135 x 63 mm |
| Net Weight | 0.83 kg per set |
| Packing | 1 unit per white box, 18 units per carton, carton 470 x 360 x 340 mm |
| Gross Weight | 16.6 kg per carton |
| Certification | CE, RoHS, IP68 |
Materials Used
- Anti-scratch UV resistant polycarbonate lens
- 304 stainless steel U-shaped bracket, 3.0mm thick
- 304 stainless steel bolts and screws
- Silicone rubber gasket and sealed cable entry gland
- Semi-gloss black powder coating on housing and bracket
How This Lamp Is Built
Die casting of the aluminium housing and heat sink
Powder coating in semi-gloss black
COB LED board assembly with internal quality control
Lens bonding and gasket sealing
Quality Control on This Model
- Photometric output verified in an integrating sphere
- Sealing verified against the IP68 rating with 1 meter water depth for 30 minutes
- Vibration testing on a vibration test machine to simulate machine-mounted service
- Salt spray corrosion testing on housing coating and stainless steel bracket
- High and low temperature alternating humidity testing across the -40 to +80 degrees Celsius range
Customisation Options
- OEM logo on lamp or box by laser or silkprint, free of charge
- OEM logo on lamp by mould, MOQ 1000 pieces
- OEM color box design, free of charge, MOQ 1000 pieces
- Special packing box with plastic package and color card
- OEM shipping cartons, free of charge, MOQ 100 cartons
- Alternative cable length for integration with specific machine harnesses
How It Compares With the Alternatives
| Round 4.5 inch work lamp | The square body allows more LED area behind the same mounting footprint but requires a flat surface for the bracket |
|---|---|
| Spot beam version of the same lamp | Flood covers the near working area evenly while spot reaches further ahead but leaves the machine edges dark |
| Larger 6 inch work lamp | Lower output but fits tight spaces like cab pillars and guard rails where a 6 inch body would not clear |
How to Fit and Use It
- Mount on a flat surface using the bottom bracket and confirm the 115mm bracket width matches the machine bracket before drilling
- Leave a drip loop in the 40cm lead so water runs away from the gland rather than into it
- Select spot or flood beam pattern based on task—distance or area coverage
- Clean the PC lens with water and a soft cloth only, since solvents will damage the anti-scratch coating
Questions About This Model
Can I order a sample before placing a bulk order
Yes. Sample orders are welcome and mixed samples of different models in one shipment are accepted.
What is the lead time
Sample orders take 3 to 5 days. Bulk orders take 10 to 15 days, except during busy seasons.
Do you have a minimum order quantity
There is an MOQ for standard orders, but small orders are also accepted, which suits distributors testing a new model.
How is the lamp shipped
Samples usually go by DHL, UPS, FedEx or TNT in about 3 to 5 days. Bulk orders ship by air in about 10 to 15 days or by sea in about 15 to 30 days.
Will this lamp work on both 12V and 24V machines
Yes. The operating range is 9 to 32V DC, so the same part number can be fitted to 12V and 24V vehicles.
Can you supply the lamp with our own brand
Yes. OEM and ODM service is available, including OEM logo on the lamp and box, custom packaging, and special cartons.
Is it approved for road going machines
The lamp is CE and RoHS compliant and carries IP68 sealing, which meets international standards for vehicle lighting in harsh environments.
Get a Price on 4.5 Inch 50W Super Bright COB LED Work Light SLL
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