9 Inch 120W LED Driving Light Spot Beam
The SLL-9121 is a 9 inch LED driving light with a 10 degree spot beam designed for vehicles that operate in low visibility conditions and need a focused beam to cut through fog, rain, or darkness. Twelve 10W CREE LEDs deliver 9600 lumens at 6000K colour temperature, providing a long-range beam that illuminates the road ahead without spreading light into the driver's eyes. The die-cast aluminium housing is sealed to IP68 and protected against overvoltage and overheat, making it suitable for off-road vehicles, trucks, and heavy machinery that face extreme temperatures and electrical fluctuations.
- 9600 lumens from 12 x 10W CREE LEDs provide a bright, focused beam without excessive power draw
- IP68 sealing and overvoltage/overheat protection ensure reliable operation in harsh environments
- 9–32V DC operation covers both 12V and 24V systems, reducing the number of SKUs needed for fleet use
- Die-cast aluminium housing with durable UV polyester powder coating resists corrosion and impact
- 50,000 hour lifespan means replacement is measured in years, not months, reducing maintenance downtime
Where This Lamp Is Used
- Front-mounted lighting on off-road vehicles and 4x4s navigating remote trails at night
- Long-range illumination on trucks and buses operating on unlit highways or rural routes
- Primary headlight replacement on excavators and engineering vehicles used in night construction
- Auxiliary lighting on mining trucks and haulage vehicles where a focused beam improves safety
- Fleet vehicles operating in cold climates where electrical stability and heat dissipation are critical
Who It Is For
- Distributors of off-road and commercial vehicle lighting needing one part number for 12V and 24V systems
- Machinery OEMs fitting driving lights on production lines with consistent mounting and electrical specs
- Fleet operators replacing halogen or low-lumen LED lights that fail under sustained high load
- 4x4 accessory brands building a private label driving light range with proven durability
- Equipment dealers supplying lighting for mining and construction machinery used in extreme conditions
Problems It Solves
- Halogen driving lights burn out quickly under sustained load and fail in cold temperatures
- Cheap LED lights with no overvoltage protection are damaged by alternator spikes during engine start
- Non-IP68 sealed lights fog up or fail after exposure to rain, dust, or pressure washing
- Wide beam lights scatter light across the road and reduce visibility in fog or heavy rain
- Lights with low lumen output or poor beam focus force drivers to rely on multiple units or reduce speed
Technical Features
- Twelve 10W CREE LEDs with a total power draw of 120W and 9600 lumens output
- Durable UV polyester powder coating over the full housing and bracket
- Bare wire lead of 50cm as standard with Deutsch connector available on request
- Overvoltage and overheat protection built into the internal circuitry
- Operating window of -40 to +85 degrees Celsius, suitable for extreme climates
- 9–32V DC input range supports both 12V and 24V vehicle systems
- Rated for more than 50000 hours of continuous operation
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-9121 |
|---|---|
| Max Power | 120W |
| LED | 12 pcs x 10W CREE |
| Beam Pattern | Spot |
| Colour Temperature | 6000K |
| Operating Voltage | 9–32V DC |
| Lens Material | Anti-reflective UV resistant PC |
| Bracket Material | Die-cast aluminium |
| Waterproof Rating | IP68 |
| Operating Temperature | -40 to +85 degrees Celsius |
| Electrical Connection | Bare wire 50cm, Deutsch connector available |
| Certification | CE, RoHS, EMC, IP68 |
Materials Used
- Anti-reflective UV resistant polycarbonate lens
- UV polyester powder coating on the housing
- Silicone rubber gasket and sealed cable entry gland
- Die-cast aluminium mounting bracket
How This Lamp Is Built
Die casting of the aluminium housing and heat sink
Powder coating with UV polyester finish
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 IP68 rating before shipment
- Vibration testing on a vibration test machine to reproduce machine mounted service
- Salt spray corrosion testing on housing coating and bracket
- High and low temperature alternating humidity testing across the -40 to +85 degrees Celsius window
Customisation Options
- Deutsch DT connector instead of the standard 50cm bare wire lead
- Spot beam optics in place of the standard 10 degree 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
| Halogen driving light of similar output | Draws 10A at 12V against roughly triple that for halogen and survives electrical spikes that destroy filaments |
|---|---|
| Round 9 inch driving light | The square body fits the same mounting footprint but provides a larger LED array and better heat dissipation |
| Flood beam version of the same lamp | Spot beam reaches further ahead while flood covers a wider area but sacrifices reach and intensity |
| Smaller 6 inch driving light | Higher output and longer beam reach but requires a larger mounting surface and may not fit on compact vehicle grilles |
How to Fit and Use It
- Wire through a fused feed sized for 10A at 12V or 5A at 24V and keep the cable entry pointing downward to prevent water ingress
- Leave a drip loop in the 50cm lead so water runs away from the gland rather than into it
- Aim the 10 degree spot beam at the road ahead and use a secondary flood light for side visibility if needed
- Clean the PC lens with water and a soft cloth only, as solvents may degrade the anti-reflective 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 and EMC protection, suitable for use on vehicles that operate on public roads.
Get a Price on 9 Inch 120W LED Driving Light Spot Beam
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