4 Inch 20W LED Work Light E-Mark Approved
The SLL-6020 is a 4 inch LED work light designed for vehicles and machinery that operate in extreme conditions, including high vibration, dust, and water exposure. Two 10W CREE LEDs deliver 1,600 lumens with a 6000K colour temperature, providing clear visibility in low-light environments. The die-cast aluminium housing with IP68 sealing and E-Mark approval ensures reliable performance on machines that must pass road inspection in Europe.
- E-Mark approval ensures compliance with European road safety standards for electrical interference and lighting performance
- IP68 sealing prevents water and dust ingress, even during pressure washing or prolonged exposure to wet environments
- Two 10W CREE LEDs provide 1,600 lumens with a 6000K colour temperature for high-contrast visibility in dark or foggy conditions
- 50,000 hour lifespan reduces maintenance frequency and replacement costs on fleet and heavy machinery
- Overvoltage and overheat protection prevent damage from electrical surges or prolonged high-temperature operation
Where This Lamp Is Used
- Front and side work lighting on excavators and cranes operating in night shifts or remote locations
- Auxiliary lighting on forklifts and engineering vehicles used in wet or dusty warehouses and construction sites
- Cab and roof lighting on off-road vehicles and utility trucks used in mining or agricultural operations
- Mounting on the front of service vehicles and tipper trucks where vibration and water exposure are common
- Use on machinery with fluctuating voltage systems, such as older trucks or hybrid equipment
Who It Is For
- Machinery OEMs fitting work lights on production lines where E-Mark compliance is required for export
- Fleet operators replacing halogen lamps that fail under vibration or in wet conditions
- 4x4 accessory brands building a private label range with certified lighting for European markets
- Equipment dealers fitting lights on machines used in mining, agriculture, or marine environments
Problems It Solves
- Halogen work lights fail under vibration and draw excessive current, increasing alternator load
- Unsealed or non-compliant lights fail during pressure washing or in high humidity, leading to short circuits
- Lack of E-Mark approval can cause rejection during road inspection for machines used on public roads
- Low-lumen or narrow beam lights leave large areas of the machine’s work zone in shadow
- Non-protected electronics can be damaged by voltage spikes from alternators or battery charging cycles
Technical Features
- Two 10W CREE LEDs with a total output of 1,600 lumens and 6000K colour temperature
- Flood or spot beam options available depending on mounting and application needs
- Die-cast aluminium housing with durable UV-resistant polyester powder coating
- Anti-UV, impact-resistant polycarbonate lens with scratch protection
- Overvoltage protection circuit to prevent damage from voltage spikes
- Overheat protection to shut down the lamp if internal temperature exceeds safe limits
- Operating temperature range of -40 to +85 degrees Celsius for use in extreme climates
- IP68 waterproof and dustproof rating with sealed cable entry and gasketed housing
- Bare wire lead of 40cm standard, with connector options 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-6020 |
|---|---|
| LED | 2 pcs x 10W CREE |
| Beam Pattern | Flood or Spot (optional) |
| Colour Temperature | 6000K |
| Operating Voltage | 9–110V DC |
| Operating Temperature | -40 to +85 degrees Celsius |
| Waterproof Rating | IP68 |
| Housing Material | Die-cast aluminium |
| Lens Material | Durable polycarbonate |
| Coating | UV-resistant polyester powder coating |
| Protection | Overvoltage and overheat protection |
| Certification | E-Mark, CE, RoHS |
Materials Used
- Die-cast aluminium housing with UV-resistant polyester powder coating
- Durable polycarbonate lens with anti-UV and scratch-resistant properties
- Silicone rubber gasket and sealed cable entry for IP68 protection
- Internal overvoltage and overheat protection circuitry
- Bare wire lead of 40cm with optional Deutsch connector
How This Lamp Is Built
Die casting of the aluminium housing and heat sink
Powder coating with UV-resistant polyester finish
LED board assembly with two 10W 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 using water immersion test
- Vibration testing on a vibration test machine to simulate machine-mounted service
- Salt spray corrosion testing on housing coating and internal components
- High and low temperature alternating humidity testing across the -40 to +85 degrees Celsius range
Customisation Options
- Spot beam optics instead of flood beam for long-distance visibility
- Deutsch connector instead of standard 40cm bare wire lead
- Private label logo on the housing and printed carton
- Alternative cable length to match specific machine harnesses
- Mixed cartons combining this lamp with other SUNLITEC models for trial orders
How It Compares With the Alternatives
| Halogen work lamp of similar output | Draws less than 1A at 12V against 3A+ for halogen and survives vibration that destroys filament lamps |
|---|---|
| Round 4 inch work lamp | The square body fits standard mounting brackets and provides more LED area within the same footprint |
| Spot beam version of the same lamp | Flood beam covers the near work zone 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 cannot clear |
How to Fit and Use It
- Leave a drip loop in the 40cm lead to prevent water from entering the gland
- Select flood beam for near work zone illumination and spot beam for long-distance visibility
- Clean the PC 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.
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 carries E-Mark approval for electromagnetic compatibility and is CE and RoHS compliant, suitable for machines used on public roads in Europe.
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