



4 Inch 45W Square LED Flood Work Lamp
The SLL14129 is a 4 inch square LED flood work lamp designed for machines that operate in dark, wet, and high-vibration environments. Nine 5W Osram LEDs deliver 6500 effective lumens across a wide flood beam, illuminating the full work area around a loader, excavator, or forklift without creating a narrow hot spot. The die-cast 6063 aluminium housing is sealed to IP68 and carries ECE R10 approval, which ensures compliance with electromagnetic compatibility standards for road-going machines in Europe.
- Flood beam spreads 6500 effective lumens evenly across the work area instead of concentrating light in a single hot spot
- IP68 sealing and an improved cable entry gland prevent water ingress during pressure washing or exposure to rain
- ECE R10 approval ensures the lamp passes electrical interference checks on machines used on public roads
- 304 stainless steel U bracket resists corrosion on machines exposed to salt, fertiliser, or frequent washdowns
- 10-30V DC input allows the same part number to be used on both 12V and 24V vehicle fleets, reducing SKU complexity
Where This Lamp Is Used
- Rear and side work lighting on wheel loaders and excavators operating during night shifts
- Cab roof lighting on tractors and harvesters during night field operations
- Deck and gangway lighting on service trucks and utility vehicles
- Loading bay lighting on tipper bodies and hook lift trucks
- Auxiliary lighting on mining support vehicles where vibration causes sealed beam lamps to fail
Who It Is For
- Distributors of 12V and 24V vehicle lighting who need one part number to cover both systems
- Machinery OEMs fitting work lamps on the production line and requiring a repeatable bracket pattern
- Fleet workshops replacing halogen work lamps that fail after a few hundred hours
- 4x4 and agricultural accessory brands building a private label work lamp range
Problems It Solves
- Halogen work lamps fail early under vibration and draw significantly more current from the alternator
- Cheap sealed lamps allow water to enter through the cable entry and fog up after a few wash cycles
- Uncertified auxiliary lighting can be rejected during road inspection on machines used on public roads
- Narrow beam lamps illuminate only a small bright patch and leave the working edge of the machine in darkness
- Painted mild steel brackets rust within a season on machines washed daily with water or chemicals
Technical Features
- Nine 5W Osram S8 LEDs with a real power draw of 31W and a maximum rating of 45W
- Flood round beam pattern with a 1 lux reading at 69 meters
- Anti-scratch UV resistant polycarbonate lens over a die-cast 6063 aluminium heat sink
- Semi-gloss black powder coating over the full housing and bracket
- 360 degree adjustable mounting for upright or pendant installation with a 42mm wide bracket
- Bare wire lead of 40cm as standard with a Deutsch connector available on request
- EMC protected wiring and an operating window of -40 to +60 degrees Celsius
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 | SLL14129 |
|---|---|
| Max Power | 45W |
| Real Power | 31W |
| LED | 9 pcs x 5W Osram S8 |
| Theoretical Lumen | 7380 lm |
| Effective Lumen | 6500 lm |
| Beam Pattern | Flood |
| 1 Lux Reading | Flood 69 meters |
| Colour Temperature | 5700K |
| Operating Voltage | 10-30V DC |
| Amp Draw | 2.6A at 12V, 1.3A at 24V |
| Housing Material | 6063 aluminium, semi-gloss black powder coating |
| Lens Material | Anti-scratch PC |
| Bracket Material | 304 stainless steel |
| Mounting | Bottom mount, 360 degree adjustable, bracket width 42mm |
| Waterproof Rating | IP68 |
| Operating Temperature | -40 to +60 degrees Celsius |
| Electrical Connection | Bare wire 40cm, Deutsch connector available |
| Size | 101 x 92.5 x 68 mm |
| Net Weight | 0.6 kg per set |
| Packing | 20 sets per carton, carton 38.5 x 26 x 31.5 cm |
| Certification | CE, RoHS, EMC, ECE R10, IP68 |
Materials Used
- 6063 die-cast aluminium housing and heat sink
- 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 S8 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
| Halogen work lamp of similar output | Draws 2.6A at 12V against roughly triple that for halogen and survives vibration that kills a filament |
|---|---|
| Round 4 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
- Mount on a flat surface using the bottom bracket and check the 42mm bracket width against the machine bracket before drilling
- Wire through a fused feed sized for 2.6A at 12V or 1.3A at 24V and keep the cable entry pointing downward
- 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 10 to 30V 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 ECE R10 approval for electromagnetic compatibility, together with an IP68 sealing rating.
Get a Price on 4 Inch 45W Square LED Flood Work Lamp
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