5 Inch 27W Square LED Work Light
The SLL-5028 is a 5 inch square LED work light designed for machines that operate in harsh conditions with prolonged exposure to vibration, dust, and water. Nine 3W Bridgelux LEDs deliver 2100 effective lumens in a flood or spot beam pattern, providing even illumination across the work zone instead of a narrow bright spot.
- 2100 effective lumens spread evenly across the work area with flood beam or focused for distance with spot beam
- IP68 sealing and a robust cable entry gland prevent water ingress during pressure washing or submersion
- 9 to 32V DC operation allows the same part number to be used on 12V and 24V systems, reducing SKU count
- Overvoltage and overheat protection prevent damage from electrical spikes or blocked airflow
- 50000 hour lifespan means replacement is measured in years, not months, reducing maintenance downtime
Where This Lamp Is Used
- Front and side work lighting on excavators and cranes operating in low-light or night conditions
- Cab roof and underbody lighting on agricultural tractors and harvesters during extended field shifts
- Loading and unloading zone lighting on tipper trucks and hook lift bodies in industrial yards
- Auxiliary lighting on forklifts and engineering vehicles where vibration destroys sealed beam lamps
- Emergency lighting on service and utility vehicles used in remote or poorly lit areas
Who It Is For
- Distributors of vehicle lighting who need a single part number to serve both 12V and 24V fleets
- Machinery OEMs fitting work lights on production lines and requiring consistent mounting patterns
- Fleet operators replacing halogen lamps that fail under vibration and draw excessive current
- 4x4 and industrial accessory brands building a private label work light range with custom beam options
Problems It Solves
- Halogen work lamps burn out quickly under vibration and draw significantly more current than LED alternatives
- Cheap sealed lamps allow water to enter through the cable gland and fog up after a few wash cycles
- Narrow spot beams leave the edges of the work area in shadow, increasing the risk of accidents
- Mild steel brackets rust within weeks on machines washed daily, leading to failure of the mounting system
- Lack of overvoltage or overheat protection causes premature failure in electrical systems with unstable voltage
Technical Features
- Nine 3W Bridgelux LEDs with a total real power draw of 27W and a maximum rating of 30W
- Flood or spot beam pattern available depending on the lens optic used
- Semi-gloss black durable UV polyester powder coating over the full housing and bracket
- Bare wire lead of 40cm as standard with Deutsch connector available on request
- Overvoltage and overheat protection built into the internal circuitry
- Operating window of -40 to +60 degrees Celsius, suitable for extreme cold and hot environments
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-5028 |
|---|---|
| Real Power | 27W |
| LED | 9 pcs x 3W Bridgelux |
| Beam Pattern | Flood or Spot (optional) |
| Colour Temperature | 6000K |
| Operating Voltage | 9-32V DC |
| Lens Material | Anti-reflective UV resistant PC |
| Waterproof Rating | IP68 |
| Operating Temperature | -40 to +60 degrees Celsius |
| Electrical Connection | Bare wire 40cm, Deutsch connector available |
| Protection | Overvoltage, overheat protection |
Materials Used
- Anti-reflective UV resistant polycarbonate lens
- Silicone rubber gasket and sealed cable entry gland
- Semi-gloss black durable UV polyester 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 Bridgelux 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 5 inch work lamp | The square body puts more LED area behind the same mounting footprint but needs a flat surface for the bottom bracket |
|---|---|
| Spot beam version of the same lamp | Flood covers the near working area evenly while spot reaches further ahead but leaves the machine edges dark |
| 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 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-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, which supports use on machines that operate on public roads.
Get a Price on 5 Inch 27W Square LED Work Light
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