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4 Pin LED Auxiliary Light Wiring Harness Kit with Relay, Fuse & Waterproof Connector
SKU: BS-WH-040
Heavy-Duty LED Auxiliary Light Wiring Harness Kit with Relay Box, Fuse Holder, Waterproof Connector and Extension Loom for Offroad Vehicle Lighting Modification
产品描述
This LED auxiliary light wiring harness kit is designed as a plug-and-play power solution for upgrading offroad LED driving lights, spotlights, fog lights, bonnet pod lights and bumper-mounted auxiliary lights. It integrates a relay, inline fuse holder, waterproof connector and extended wiring loom into one complete assembly, helping reduce installation time and protect the vehicle’s original electrical system.
Product Features
1. Complete Plug & Play Wiring Assembly
The kit comes pre-assembled with wiring loom, relay, fuse holder and waterproof connector, reducing the need for separate wiring preparation and custom crimping.
2. Built-In Relay and Fuse Protection
The integrated relay helps stabilize current switching, while the inline fuse holder provides overcurrent protection for LED auxiliary lights, reducing the risk of circuit overload.
3. Waterproof Connector Design
Equipped with a waterproof sealed connector, the harness is suitable for engine bay, bumper, roof rack and bonnet mounting positions, helping resist water splash, mud, dust and salt mist.
4. Flexible Extension Wiring Loom
The coiled extension cable allows flexible installation around bull bars, roof racks, bumper bars and other offroad accessories, making it suitable for both front and rear auxiliary light upgrades.
5. Universal 12V/24V Application
Compatible with most 12V and 24V vehicle electrical systems, this harness can be used for LED driving lights, spot beams, flood lights, fog lights and additional offroad lighting upgrades.
Factory Production Advantages
1. We offer direct factory supply for auto lighting wiring harnesses, auxiliary light adapters and offroad electrical accessories.
2. Custom wire lengths, connector combinations, wire colors, relay specifications and packaging options are available for wholesale customers.
3. Each batch is inspected for wire thickness, connector fit, electrical continuity, relay function and waterproof performance before shipment.
3. Two years warranty.




