LASFIT 10ft Wiring Harness Kit for LED Light Bars — 12AWG Heavy-Duty, Relay & Inline Fuse

The LASFIT 10ft Wiring Harness Kit is a ready-to-install, heavy-duty 12AWG power loom with relay, blade fuse and on/off switch built to power LED light bars and pods reliably in 12V vehicle systems.

This harness is designed to make wiring auxiliary lights simple and secure without splicing into factory circuits. Built from durable materials and a fully enclosed PVC jacket, the kit supplies a long 10-foot lead, a replaceable relay, an inline blade fuse for overcurrent protection and a user-friendly dashboard-mounted switch. It’s intended to work with a wide range of aftermarket LED light bars and single or paired LED pods on trucks, Jeeps, SUVs, ATVs, UTVs, boats and motorcycles.

How does this harness simplify installing a light bar?

Installation is plug-and-play focused: the kit includes pre-crimped connectors for the light and a molded switch harness for the dash, so you don’t need to cut factory wiring or create a custom relay circuit. The long 10-foot cable gives installation flexibility for engines and bumper-mounted lights.

• 10 ft extendable 12AWG main power lead to reach most mounting locations
• Pre-wired relay and fuse holder—no relay wiring diagrams required
• Molded dashboard switch with clear on/off function
• Plug-and-play connectors for many LED light manufacturers

What safety features prevent electrical problems?

Safety is addressed with an inline blade fuse that protects against short circuits and overcurrent. The relay isolates the light circuit from the vehicle’s OEM wiring, reducing the risk of overheating or damage to the factory electrical system.

• Inline blade fuse for fast replacement and clear protection rating
• Replaceable relay housed in a rubber-protected socket
• Fully enclosed PVC waterproof exterior to resist moisture and road debris
• High-conductivity pins and quality terminals for reliable connections

Which lights and vehicles are compatible with this wiring kit?

The wiring harness is engineered to support most 12V LED light bars and pods, and its universal design fits a broad range of vehicles. Whether you’re installing ditch lights on a Jeep, a bumper light on a truck, or auxiliary pods on an ATV, the harness covers common use cases.

• Compatible with LED light bars, single/multiple LED pods and work lights
• Suitable for cars, trucks, SUVs, Jeeps, ATVs, UTVs, motorcycles and boats
• 12AWG gauge supports higher current draw from larger LED arrays
• Works well with LASFIT-branded lights and many third-party products

How durable is the kit for off-road and marine conditions?

The harness uses rugged materials and protective sheathing to withstand vibration, moisture and dirt encountered off-road. Critical components like the fuse holder and relay socket are rubber-protected or sealed so connections remain reliable in adverse conditions.

• PVC waterproof exterior resists water, mud and salt spray
• Rubber-protected relay housing reduces corrosion risk
• High-quality terminals and secure crimps for vibration resistance
• Designed for prolonged outdoor and off-road exposure

Who is this for: This LASFIT harness is aimed at vehicle owners, off-road enthusiasts and installers who want a dependable, easy-to-install electrical solution for powering aftermarket LED lighting. If you need a long lead, a safe relay/fuse arrangement, and a dependable on/off switch for 12V LED bars or pods—without modifying factory wiring—this kit provides a practical, weather-resistant option with LASFIT support and a one-year quality assurance.