Offroad Utility CREE LED Light Bar
The SLL-91X is a 4×4 offroad utility LED light bar designed for vehicles and heavy machinery that operate in extreme conditions. It uses 3W CREE LEDs to deliver consistent illumination across wide or focused beams, with a 50,000 hour lifespan and IP68 sealing to resist water, dust, and vibration. The die-cast aluminium housing and durable polycarbonate lens ensure long-term performance in harsh environments, while overvoltage protection guards against electrical surges common in vehicle systems.
- 3W CREE LEDs provide high lumen output with low power draw across 9–32V DC systems
- IP68 sealing prevents water and dust ingress during offroad driving and pressure washing
- 50,000 hour lifespan reduces replacement frequency on machines used in remote or high-duty applications
- Durable UV polyester powder coating resists fading and chipping under prolonged sun exposure
- Overvoltage protection safeguards the LED driver and circuitry during alternator spikes
Where This Lamp Is Used
- Front mounting on off-road utility vehicles and 4x4s used in mining or construction zones
- Side and roof lighting on trucks and engineering vehicles operating in low visibility conditions
- Auxiliary lighting on excavators and cranes where vibration and dust degrade standard lamps
- Night operation on agricultural machinery and harvesters in open fields with variable terrain
- Fleet vehicles used in remote areas where access to spare parts is limited and reliability is critical
Who It Is For
- Distributors sourcing reliable LED light bars for 4x4 accessory brands and offroad vehicle kits
- Machinery OEMs integrating lighting into production line builds with consistent mounting and electrical specs
- Fleet operators replacing halogen or low-lifespan LED bars that fail under vibration and heat
- Equipment dealers offering branded lighting solutions for trucks, cranes, and utility vehicles
- 4x4 accessory brands developing private label light bars with configurable beam patterns
Problems It Solves
- Halogen or low-quality LED bars fail prematurely under vibration and heat in offroad environments
- Water and dust ingress through poor sealing causes fogging, short circuits, and early failure
- Narrow beam lamps leave large areas of the work zone unlit, increasing accident risk
- Inconsistent voltage from vehicle alternators damages unprotected LED drivers
- Painted or coated housings degrade under UV exposure and salt spray, leading to corrosion
Technical Features
- Four 3W CREE LEDs with a total real power draw of approximately 12W at 12V
- Beam patterns available: spot, flood, or combo beam, selectable at time of order
- Die-cast aluminium housing with semi-gloss black UV-resistant polyester powder coating
- Anti-UV, impact-resistant polycarbonate lens with scratch-resistant surface
- IP68 waterproof and dustproof rating with sealed cable entry and gasket system
- Overvoltage protection circuit to handle transient voltage spikes in vehicle electrical systems
- Operating voltage range of 9–32V DC, compatible with 12V and 24V vehicle systems
- Operating temperature range from -40 to +85 degrees Celsius
- Bare wire lead of 40cm standard, with Deutsch connector available on request
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-91X |
|---|---|
| LED | 4 pcs x 3W CREE |
| Beam Pattern | Spot, Flood, Combo (selectable) |
| Colour Temperature | 6000K |
| Operating Voltage | 9–32V DC |
| Operating Temperature | -40 to +85 degrees Celsius |
| Waterproof Rating | IP68 |
| Housing Material | Die-cast aluminium |
| Lens Material | Polycarbonate |
| Bracket Material | Steel with UV polyester powder coating |
| Cable Length | 40cm bare wire standard, Deutsch connector available |
| Overvoltage Protection | Yes |
Materials Used
- Die-cast aluminium housing with semi-gloss black UV polyester powder coating
- Anti-UV, scratch-resistant polycarbonate lens
- Steel mounting bracket with durable powder coating
- Silicone rubber gasket and sealed cable entry gland
- Internal wiring with overvoltage protection circuit
How This Lamp Is Built
Die casting of the aluminium housing and heat sink
Powder coating application with UV-resistant polyester finish
LED board assembly using 3W CREE emitters
Lens bonding and gasket sealing
Quality Control on This Model
- Photometric output verified in an integrating sphere
- Sealing tested to IP68 standard under pressure and immersion
- Vibration testing on a vibration test machine to simulate offroad conditions
- High and low temperature alternating humidity testing across -40 to +85 degrees Celsius
Customisation Options
- Beam pattern selection: spot, flood, or combo beam at time of order
- Deutsch DT connector instead of standard 40cm bare wire lead
- Private label logo on the housing and printed carton
- Alternative cable length to match specific vehicle harnesses
- Mixed cartons combining this light bar with other SUNLITEC models for trial orders
How It Compares With the Alternatives
| Standard halogen light bar | Draws less than 12W at 12V, survives vibration, and lasts 50,000 hours versus 500–1000 hours for halogen |
|---|---|
| Low-cost LED bar with plastic housing | Die-cast aluminium and polycarbonate lens resist impact and UV degradation better than plastic |
| LED bar without overvoltage protection | Built-in protection prevents driver failure during alternator spikes common in 24V fleets |
| Round light bar of similar size | Rectangular profile fits flush on flat surfaces and allows better beam control with wider mounting options |
How to Fit and Use It
- Mount on a flat surface using the 40mm wide bracket and verify clearance before drilling
- Leave a drip loop in the 40cm lead to prevent water from entering the gland
- Select the beam pattern (spot, flood, or combo) based on the primary task: distance, area coverage, or both
- Clean the polycarbonate lens with water and a soft cloth only; avoid solvents that degrade the anti-UV 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 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 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 IP68 sealing, which supports use on vehicles operating on public roads.
Get a Price on Offroad Utility CREE LED Light Bar
Send the quantity, the destination port and any branding requirement. You will get pricing, packing data and the production lead time.