4.3 Inch 50W LED Work Light Tractor LED Spot Beam for 4x4 Offroad Vehicle Trucks SLL-4050B
The SLL-4050B is a 4.3 inch spot beam LED work light designed for off-road vehicles, trucks, and boats that need long-range visibility in dark or dusty conditions. Five 10W CREE LEDs deliver a focused beam with high intensity, suitable for driving, navigation, and work lighting on 4x4s, ATVs, and utility trucks.
- Five 10W CREE LEDs provide high-intensity output with a 6000K colour temperature for clear, daylight-like illumination
- IP67 sealing prevents water and dust ingress during off-road driving and exposure to rain or mud
- Aluminium alloy bracket resists deformation under vibration and maintains alignment on rough terrain
- 10-30V DC operation allows the same part number to be used on 12V and 24V vehicles, reducing SKU complexity
- Rated for more than 30000 hours, reducing replacement frequency on machines that operate in remote or hard-to-access areas
Where This Lamp Is Used
- Front-mounted driving light on 4x4 off-road vehicles navigating unlit trails and forest roads
- Auxiliary lighting on trucks and utility vehicles operating at night in construction or mining zones
- Side and front lighting on boats and marine utility craft where visibility is critical in low-light conditions
- Work lighting on ATVs and side-by-side vehicles used in agriculture or surveying after dark
- Supplemental lighting on fleet vehicles that need consistent beam pattern and voltage tolerance across different models
Who It Is For
- Distributors of off-road vehicle lighting needing a consistent part number for 12V and 24V systems
- 4x4 accessory brands building a private label spot beam lighting range with proven durability
- Fleet operators replacing halogen driving lights that fail under vibration or in wet conditions
- Machinery OEMs integrating a reliable spot beam light into production line builds for off-road vehicles
- Boat and marine equipment dealers requiring a sealed, long-life light for use on vessels in coastal or river environments
Problems It Solves
- Halogen driving lights burn out quickly under vibration and draw excessive current from vehicle electrical systems
- Cheap plastic housings crack or degrade under UV exposure and fail to seal against dust and water in off-road use
- Inconsistent beam patterns from low-quality LEDs leave blind spots in front of the vehicle during night driving
- Lights not rated for 10-30V DC require separate SKUs for 12V and 24V fleets, increasing inventory and ordering complexity
- Short lifespan lights require frequent replacement on vehicles that operate in remote areas with limited service access
Technical Features
- Five 10W CREE LEDs with a total real power draw of 50W and a maximum rating of 50W
- Semi-gloss black powder coating over the full housing and bracket
- Bare wire lead of 40cm as standard with Deutsch connector available on request
- EMC protected wiring and an operating window of -40 to +60 degrees Celsius
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-4050B |
|---|---|
| Max Power | 50W |
| Real Power | 50W |
| LED | 5 pcs x 10W CREE |
| Beam Pattern | Spot |
| Colour Temperature | 6000K |
| Operating Voltage | 10-30V DC |
| Lens Material | Anti-scratch PC |
| Bracket Material | Aluminium alloy |
| Waterproof Rating | IP67 |
| Lifetime | More than 30000 hours |
| Certification | CE, RoHS |
Materials Used
- Anti-scratch UV resistant polycarbonate lens
- Aluminium alloy U shaped mounting bracket
- Silicone rubber gasket and sealed cable entry gland
- Semi-gloss black powder coating
How This Lamp Is Built
Die casting of the aluminium housing and heat sink
Powder coating in semi-gloss black
LED board assembly with CREE emitters
Lens bonding and gasket sealing
Quality Control on This Model
- Photometric output verified in an integrating sphere
- Sealing verified against the IP67 rating before shipment
- Vibration testing on a vibration test machine to reproduce machine mounted service
- Salt spray corrosion testing on housing coating and aluminium bracket
- High and low temperature alternating humidity testing across the -40 to +60 degrees Celsius window
Customisation Options
- Deutsch DT connector instead of the standard 40cm bare wire lead
- Spot beam optics in place of the flood pattern
- Private label logo on the housing and printed carton
- Alternative cable length for a specific machine harness
- Mixed cartons combining this lamp with other SUNLITEC models for trial orders
How It Compares With the Alternatives
| Round 4.3 inch work lamp | The square body puts more LED area behind the same mounting footprint but needs a flat surface for the bottom bracket |
|---|---|
| Flood beam version of the same lamp | Spot reaches further ahead for road visibility while flood covers a wider area near the machine |
| Larger 6 inch work lamp | Lower output but fits guard rails and cab pillars where a 6 inch body will not clear |
How to Fit and Use It
- Leave a drip loop in the 40cm lead so water runs away from the gland rather than into it
- Aim the spot beam at the road ahead and use a flood lamp separately for near-field work areas
- Clean the PC lens with water and a soft cloth only, since solvents will haze 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 normally take around 3 to 7 working days. Bulk lead time depends on the model and the quantity ordered.
Do you have a minimum order quantity
There is an MOQ for standard orders, but smaller 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 around 4 to 7 days. Bulk orders ship by air in about 7 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 10 to 30V 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 a private label logo on the housing and printed cartons.
Is it approved for road going machines
The lamp is CE and RoHS compliant and carries EMC protection, suitable for use on vehicles that operate on public roads.
Get a Price on 4.3 Inch 50W LED Work Light Tractor LED Spot Bea
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