Nilight 10036W 11.5ft 14AWG DT Connector Wiring Harness Kit for 12V LED Light Bars — Relay & Inline Fuse, Dual Leads

This harness bundles the key electrical components needed to power off-road and work LED light bars from a 12V source without splicing the light-bar end: 11.5 feet of 14AWG cabling, DT plug compatibility, two separate output leads, a power relay and an inline blade fuse. The kit is designed for heavy-duty vehicle and marine use where a robust wiring solution and built-in circuit protection are required. It simplifies installation and keeps the control electronics and power distribution tidy under the hood or behind a dash switch.

How does this harness simplify installing an LED light bar?

The Nilight kit arrives with a pre-wired relay, inline blade fuse, DT connector and an on/off switch for fast, low-risk installation. Because the light-bar end is already fitted with a DT connector, you avoid cutting or soldering the factory cable ends. The relay isolates the switch from high current, protecting the dash and switch contacts.

• Pre-terminated DT connector for plug-and-play connection to compatible light bars
• Built-in relay routes high current through the harness, not the switch
• Inline blade fuse provides overcurrent protection at the power source
• 11.5-foot length gives flexible routing options through engine bay or chassis

What load and vehicle types can this harness support?

With 14AWG conductors and two output leads, this harness is rated for typical 12V LED light bars up to the kit's wattage limit. It works on cars, trucks, SUVs, ATVs, UTVs and boats that operate from a 12V battery, and the dual leads let you power two fixtures or one larger fixture split across two connectors.

• 14AWG heavy-duty wire suitable for up to the specified maximum wattage
• Dual leads allow powering two separate LED fixtures or parallel connections
• Designed for 12V DC electrical systems found in most automotive and marine applications

What safety features are included to protect the lights and vehicle electricals?

The harness integrates a power relay and an inline blade fuse to guard against overcurrent and short circuits. The relay reduces wear on the switch by handling high currents while the fuse is positioned to protect downstream wiring and connected lights. These features help reduce the risk of wiring damage during heavy use or electrical faults.

• Inline blade fuse placed near the battery connection for primary protection
• Power relay prevents high current from flowing through the switch contacts
• 14AWG wiring minimizes voltage drop and reduces heat buildup under load

What should I know before installation?

Installation should follow vehicle-specific routing practices, secure mounting, and correct polarity to ensure reliable operation. Nilight recommends installation by a qualified technician or under professional guidance to guarantee proper fuse placement, relay grounding and safe cable routing away from moving parts and hot surfaces.

• Verify compatibility with your LED light bar DT connector type before connecting
• Mount relay and fuse close to the battery and ground relay to vehicle chassis
• Route wiring away from exhaust and suspension components to avoid abrasion and heat

Who this product is for: The Nilight 10036W 11.5ft wiring harness is ideal for vehicle owners, off-road enthusiasts, fleet technicians and marine users who want a durable, plug-ready electrical solution for powering one or two 12V LED light bars. Choose this kit if you need a tidy, protected wiring setup that reduces on-site wiring labor and improves safety compared with ad-hoc or bare-wire installations.