LED Light Bar Buying Guide for Distributors
Single Row Versus Double Row Light Bars
Single row bars have one line of LEDs, offering a compact profile and lower power draw. Double row bars have two lines, increasing output and beam intensity. Choose single row for space-limited mounts or lower power needs. Choose double row when maximum visibility is required on off-road vehicles or heavy machinery.
Wattage Steps and Power Matching
The range includes wattages at 12W, 16W, 18W, 24W, 30W, 40W, 45W, 50W, 60W, 90W, and 120W. These steps allow matching the light output to the vehicle’s electrical system. A 12V system with limited fuse capacity may need to stay under 30W. A 24V system on a crane or mining vehicle can support higher wattage without overloading the circuit.
Beam Pattern Selection for the Task
Beam patterns include spot, flood, combo, driving, fog, and scene. Spot patterns concentrate light at distance for driving ahead. Flood patterns spread light across a wide area for work zones. Combo patterns balance both. Match the beam to the machine’s function: spot for driving lights on trucks, flood for work lights on excavators.
Mounting Hardware and Fitment Options
Mounting brackets are available in 304 stainless steel, 316 stainless steel, and die-cast aluminum. Lens options include polycarbonate and PC lens. Housing materials include 6063 aluminum and die-cast aluminum. Choose 316 stainless steel for marine environments. Use die-cast aluminum for high-impact resistance on forklifts and engineering vehicles.
IP Ratings for Harsh Environments
IP67, IP68, and IP69 ratings are available. IP68 means the light is dust-tight and can be submerged in water beyond 1 meter. IP69 is rated for high-pressure, high-temperature washdowns. Use IP69 for forklifts in food processing plants or construction equipment in wet conditions.
Voltage Range and System Compatibility
Voltage ranges include 9–32V, 9–48V, 10–30V, and 10–32V. These cover standard 12V and 24V systems, as well as higher voltage systems on industrial vehicles. A 9–48V range allows one model to serve trucks, buses, and mining machinery without voltage mismatch.
Operating Temperature and Real-World Use
Operating temperature ranges are -40~+50°C and -40~+105°C. The wider range is for machinery operating in extreme climates, such as Arctic mining equipment or desert construction vehicles. The higher temperature rating ensures the light continues to function under sustained thermal load.
Certifications and Compliance
Products are CE and RoHS compliant. E-MARK, ECE R10, and EMC certifications are available on specific models. These are required for sale in Europe and North America. Confirm certification status with the part number before placing a bulk order.
In-House Testing for Consistent Performance
SUNLITEC tests output using an integrating sphere, vibration, salt spray corrosion, and high-low temperature alternating hot and humid chambers. This ensures every batch meets the published lumen output, beam pattern, and environmental durability. Test results are not claimed but verified through internal processes.
OEM and ODM Support for Branding
OEM and ODM services are available. Custom branding, housing design, and electrical integration can be provided. Use this to fit the light to your machine’s design or to meet a fleet operator’s specific mounting requirements.
Questions on This Topic
What is the minimum order quantity for standard light bars
MOQ applies to standard orders, but small orders are accepted. Contact sales for exact MOQ based on model and quantity.
How long does it take to receive a sample
Sample orders take 3-7 working days. Samples ship via DHL, UPS, FedEx, or TNT and arrive in about 4-7 days.
Can I mix different models in a sample order
Yes, mixed samples are acceptable. You can request up to 3 different models for evaluation.
What is the lead time for bulk orders
Bulk lead time depends on the item and quantity. It ranges from 7-15 days by air to 15-30 days by sea.
Are the LEDs from Osram or Cree
Osram and CREE LEDs are used in the product range. Specific models may use one or both. Confirm the chip type with the part number.
What certifications are available on the light bars
Products are CE and RoHS compliant. E-MARK, ECE R10, and EMC certifications are available on specific models. Check the model’s data sheet or ask for certification documents.
How are the beam patterns measured
Beam patterns are defined by the optic design and verified through in-house testing. The pattern is consistent across production batches and matches the published description.
Products Referenced in This Guide
Apply This to Your Own Specification
Send the machine and the duty cycle. We will point at the models that match what you have just read.