E-Mark Approval 3.5 Inch 40W 12v 24v LED Tractor Off Road Lamp Work LED Lights
Four 10W Osram LEDs deliver 3600 effective lumens at 5500K-6000K colour temperature, providing clear, consistent illumination across the work zone without glare. The die-cast aluminium housing with IP68 sealing resists water, dust, and vibration, while Emark approval ensures compliance with European vehicle lighting standards for machines used on public roads.
- 40W real power draw with 3600 effective lumens from four 10W Osram LEDs for bright, even work area lighting
- IP68 sealing and a robust cable entry gland prevent water ingress during pressure washing or rain exposure
- Emark approval allows the lamp to be fitted on road-going machines without failing electrical interference checks
- 304 stainless steel mounting bracket resists corrosion on machines exposed to salt, chemicals, or daily washdowns
- 12V and 24V compatible operating range of 9-32V DC reduces SKU count for fleets with mixed voltage systems
Where This Lamp Is Used
- Front and side work lighting on tractors and harvesters operating in low light or night field conditions
- Cab and hood lighting on off-road vehicles used in mining, construction, or forestry
- Auxiliary lighting on utility trucks and service vehicles where vibration damages standard sealed lamps
- Machine edge lighting on excavators and loaders where a narrow beam leaves the work zone partially dark
- Fleet maintenance lighting on agricultural and industrial vehicles that operate in wet or dusty environments
Who It Is For
- Distributors of off-road vehicle lighting needing one part number for both 12V and 24V systems
- Machinery OEMs integrating work lamps into production lines with consistent mounting and wiring
- Fleet operators replacing halogen lamps that fail under vibration and draw excessive current
- 4x4 accessory brands developing private label work lamp ranges with Emark compliance
- Equipment dealers fitting lighting on machines sold in Europe where Emark is required
Problems It Solves
- Halogen work lamps burn out quickly under vibration and draw more current than LED alternatives
- Cheap sealed lamps allow water entry through the cable gland, leading to fogging after a few wash cycles
- Uncertified auxiliary lights can be rejected during road inspection on machines used on public roads
- Narrow spot beams illuminate only a small area ahead, leaving the machine edges and nearby ground dark
- Painted mild steel brackets corrode within weeks on machines washed daily with water or chemicals
Technical Features
- Flood or spot beam pattern available as an option, with a 3600 lumen output at 5500K-6000K colour temperature
- Semi-gloss black powder coating over the full housing and bracket
- 304 stainless steel U bracket with a 36mm width for mounting on flat or curved surfaces
- 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
- 360 degree adjustable mounting for upright or pendant installation
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-W4034 |
|---|---|
| Real Power | 40W |
| LED | 4 pcs x 10W Osram |
| Theoretical Lumen | 3600 lm |
| Effective Lumen | 3600 lm |
| Beam Pattern | Flood or Spot (optional) |
| Colour Temperature | 5500K-6000K |
| Operating Voltage | 9-32V DC |
| Lens Material | Anti-scratch PC |
| Bracket Material | 304 stainless steel |
| Waterproof Rating | IP68 |
| Electrical Connection | Bare wire 40cm, Deutsch connector available |
| Lifetime | More than 50000 hours |
| Certification | Emark, CE, RoHS |
Materials Used
- Anti-scratch UV resistant polycarbonate lens
- 304 stainless steel 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 Osram 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 stainless 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 3.5 inch work lamp | The square body fits the same mounting footprint but provides more LED surface area for better heat dissipation and light output |
|---|---|
| Spot beam version of the same lamp | Flood covers the near work zone evenly while spot reaches further ahead but leaves the machine edges dark |
| Larger 4 inch work lamp | Lower output but fits tight spaces like cab pillars and guard rails where a 4 inch body would not clear |
How to Fit and Use It
- Mount on a flat surface using the bottom bracket and confirm the 36mm 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
- Aim the flood beam at the working area close to the machine and use a spot lamp separately for distance
- 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 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
Yes. The lamp is Emark, CE and RoHS compliant, with an IP68 sealing rating and EMC protection.
Get a Price on E-Mark Approval 3.5 Inch 40W 12v 24v LED Tractor
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