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Part number SLL-5048 48W

5 Inch 48W Auto Car Truck Offroad Tractor Forklift John Deere Caterpillar SLL-5048-48W

The SLL-5048 48W square LED work lamp is designed for off-road vehicles, forklifts, tractors, and heavy machinery that operate in dark, dusty, or wet conditions. Sixteen CREE 3W LEDs deliver 4192 effective lumens in a spot or flood beam pattern, providing clear visibility across the work zone without glare.

  • 16 CREE 3W LEDs deliver 4192 effective lumens for clear visibility in dark or dusty work zones
  • Die-cast 6063 aluminium housing with black powder coating resists corrosion on machines exposed to salt or chemicals
  • 10-30V DC operation allows one part number to serve both 12V and 24V fleets, reducing SKU complexity
  • Spot or flood beam options allow selection based on task—spot for distance, flood for wide coverage
  • Deutsch connector available as standard, reducing connection failure in high-vibration environments

Samples normally despatched in 3 to 7 working days. Mixed samples accepted.

Application Scenarios

Where This Lamp Is Used

  • Front and side work lighting on forklifts and excavators operating in warehouses and construction sites
  • Auxiliary lighting on tractors and harvesters during night field operations
  • Cab roof and boom lighting on mining machinery and engineering vehicles
  • Deck and side lighting on service trucks and utility vehicles used in remote areas
  • Off-road lighting on ATVs, UTVs, and 4x4 vehicles used in rugged terrain
Buyer Fit

Who It Is For

  • Distributors of vehicle lighting needing a single part number for 12V and 24V systems
  • Machinery OEMs fitting work lamps on production lines with consistent mounting patterns
  • Fleet operators replacing halogen lamps that fail under vibration or after a few wash cycles
  • 4x4 and agricultural accessory brands developing a private label work lamp range
  • Marine equipment suppliers requiring durable lighting for boats and vessels exposed to saltwater
Why It Exists

Problems It Solves

  • Halogen work lamps fail early under vibration and draw excessive current from vehicle alternators
  • Cheap sealed lamps allow water entry through the cable gland, leading to fogging after a few wash cycles
  • Unprotected connectors in high-vibration environments cause intermittent lighting or complete failure
  • Narrow beam lamps create hot spots and leave the edges of the work area in shadow
  • Painted mild steel brackets corrode quickly on machines washed daily with water or cleaning agents
Build Detail

Technical Features

  • Sixteen CREE 3W LEDs with a total real power draw of 48W and a theoretical lumen output of 4192 lm
  • Anti-scratch UV resistant PC lens (brand: Lexan) over a die-cast 6063 aluminium heat sink
  • Semi-gloss black powder coating over the full housing and bracket
  • Silicone rubber cable line with a Deutsch connector as standard, bare wire available on request
  • Operating temperature range of -40 to +50 degrees Celsius, suitable for extreme climates
Data Sheet

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.

5 Inch 48W Auto Car Truck Offroad Tractor Forklift John Deere Caterpillar SLL-5048-48W specification
Part NumberSLL-5048 48W
Max Power48W
LED16 pcs x 3W CREE
Theoretical Lumen4192 lm
Effective Lumen4192 lm
Beam PatternSpot, Flood
Housing Material6063 die-cast aluminium, semi-gloss black powder coating
Lens MaterialAnti-scratch UV resistant PC (brand: Lexan)
Operating Temperature-40 to +50 degrees Celsius
Electrical ConnectionSilicone rubber line with Deutsch connector standard, bare wire available
Packing12 sets per carton, carton 58 x 31 x 24.5 cm, G.W. 20 kg
Materials

Materials Used

  • 6063 die-cast aluminium housing and heat sink
  • Anti-scratch UV resistant polycarbonate lens (brand: Lexan)
  • Silicone rubber gasket and sealed cable entry gland
  • Semi-gloss black powder coating
Manufacturing

How This Lamp Is Built

01

Die casting of the aluminium housing and heat sink

02

Powder coating in semi-gloss black

03

LED board assembly with CREE emitters

04

Lens bonding and gasket sealing

Testing

Quality Control on This Model

  • Photometric output verified in an integrating sphere
  • 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 +50 degrees Celsius window
OEM and ODM

Customisation Options

  • Spot beam or flood beam optics based on application
  • Deutsch connector instead of bare wire lead
  • Private label logo on the housing and printed carton
  • Alternative cable length for integration with specific machine harnesses
  • Mixed cartons combining this lamp with other SUNLITEC models for trial orders
Comparison

How It Compares With the Alternatives

Halogen work lamp of similar outputDraws 4A at 12V against roughly triple that for halogen and survives vibration that destroys a filament
Round 5 inch work lampThe square body fits the same mounting footprint but provides more LED area for better light distribution
Spot beam version of the same lampFlood covers the near work area evenly while spot reaches further ahead but leaves the machine edges dark
Larger 6 inch work lampLower output but fits in tight spaces like cab pillars and guard rails where a 6 inch body would not clear
Use Guide

How to Fit and Use It

  • Wire through a fused feed sized for 4A at 12V or 2A 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 spot beam at distant objects and use a flood beam lamp separately for near work areas
  • Clean the PC lens with water and a soft cloth only, as solvents may damage the anti-scratch coating
Buyer Questions

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.

Get a Price on 5 Inch 48W Auto Car Truck Offroad Tractor Forkli

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