7 Inch 59W 4000 LM
The SLL-9721-50 is a 7 inch high beam LED driving light built for off-road trucks, excavators, and mining machinery operating in dark, rugged terrain. Ten 5W Osram LEDs deliver 4000 effective lumens in a focused high beam pattern, improving visibility on unpaved roads and reducing the risk of collision during night operations. The lamp is R10, R112, and R87 approved for use on public roads and carries IP68 sealing, which prevents failure from dust, water, or vibration during heavy-duty use.
- 4000 effective lumens from 10×5W Osram LEDs provide clear, stable illumination on dark and rugged roads
- IP68 sealing and a die-cast aluminium housing resist dust, water, and shock in harsh environments
- R10, R112, and R87 approvals ensure compliance with vehicle lighting regulations for road-going machines
- 9–32V DC operation covers both 12V and 24V systems, reducing the number of SKUs needed for fleet use
- Overvoltage and overheat protection prevent damage from electrical surges or prolonged high-load use
Where This Lamp Is Used
- Front mounting on off-road trucks and mining support vehicles operating on unpaved roads at night
- Side and front lighting on excavators and engineering vehicles used in remote construction zones
- Auxiliary lighting on fleet trucks and service vehicles that travel on unlit rural or forest roads
- Night operation lighting on cranes and mobile machinery in ports or industrial yards
- Replacement for halogen driving lights that fail under vibration or in wet conditions
Who It Is For
- Fleet operators needing reliable driving lights for 12V and 24V trucks that operate on public roads
- Machinery OEMs fitting driving lights on production line vehicles that must pass road inspection
- Distributors selling off-road lighting with regulatory approval for resale in Europe and North America
- 4x4 accessory brands building a private label driving light range with certified performance
- Equipment dealers replacing halogen lights that burn out early or fail in wet conditions
Problems It Solves
- Halogen driving lights fail under vibration and draw excessive current from the vehicle’s electrical system
- Unapproved or uncertified LED lights are rejected during road inspection on machines used on public roads
- Cheaply made lights fog up or lose brightness after exposure to dust, rain, or pressure washing
- Narrow beam lights leave the edge of the road or trail unlit, increasing the risk of collision
- Lights with no overvoltage protection suffer damage from alternator spikes or battery charging cycles
Technical Features
- Ten 5W Osram LEDs with a real power draw of 59W and a maximum rating of 59W
- High beam pattern with 4000 effective lumens and a theoretical output of 5900 lumens
- Semi-gloss black durable UV polyester powder coating over the full housing
- 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 +85 degrees Celsius for use in extreme climates
- Dual function: high beam and 9-watt daytime running light (DRL) on the same unit
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-9721-50 |
|---|---|
| Max Power | 59W |
| Real Power | 59W |
| LED | 10 pcs x 5W Osram |
| Effective Lumen | 4000 lm |
| Beam Pattern | High Beam |
| 1 Lux Reading | Not specified |
| Colour Temperature | 6000K |
| Operating Voltage | 9–32V DC |
| Amp Draw | Not specified |
| Lens Material | Anti-reflective UV resistant PC |
| Waterproof Rating | IP68 |
| Operating Temperature | -40 to +85 degrees Celsius |
| Electrical Connection | Bare wire 40cm, Deutsch connector available |
| Certification | R10, R112, R87, CE, RoHS, EMC |
Materials Used
- Anti-reflective UV resistant polycarbonate lens
- Semi-gloss black durable UV polyester powder coating
- Silicone rubber gasket and sealed cable entry gland
- Internal overvoltage and overheat protection circuitry
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 internal components
- High and low temperature alternating humidity testing across the -40 to +85 degrees Celsius window
Customisation Options
- Deutsch DT connector instead of the standard 40cm bare wire lead
- Spot beam optics in place of the high beam 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 59W against roughly triple that for halogen and survives vibration that destroys a filament |
|---|---|
| Round 7 inch driving light | The square body allows more LED area behind the same mounting footprint but requires a flat surface for the bottom bracket |
| Spot beam version of the same lamp | High beam covers the immediate road ahead evenly while spot reaches further but leaves the near edge of the road dark |
| Larger 8 inch driving light | Lower output but fits narrow guard rails and front grilles where an 8 inch body will not clear |
How to Fit and Use It
- Wire through a fused feed sized for the amp draw at 12V or 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 high beam at the road ahead and use a separate flood lamp for near-side work lighting
- 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
Yes. The lamp is R10, R112, and R87 approved for use on public roads and carries CE and RoHS compliance.
Get a Price on 7 Inch 59W 4000 LM
Send the quantity, the destination port and any branding requirement. You will get pricing, packing data and the production lead time.