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

Nilight's 11.5-foot 14AWG wiring harness with DT connectors supplies a protected 12V feed, switch, relay and inline fuse for connecting dual LED light bars and off‑road lights.

If you need a ready-made electrical solution to power two separate LED light fixtures from a single 12V source, this Nilight harness kit simplifies the job. Built with 14AWG cabling, DT-style waterproof connectors and a blade fuse + relay for circuit protection, the assembly is sized for most automotive, marine and utility lighting installations. The harness is designed for easier routing, a clean switch mount and reliable connections when used with compatible LED light bars up to the specified wattage.

How does the harness handle power and protect my lights?

The kit combines a power relay and inline blade fuse so the vehicle's switch controls the relay rather than carrying the full current, reducing voltage drop and wear on factory switches. The fuse stops overcurrent events and the relay ensures consistent delivery from the battery to the lights.

• Built-in relay reduces load on dashboard switch
• Inline blade fuse protects against short circuits and overloads
• 14AWG wiring sized to safely carry the rated current
• Works with 12V DC systems common to cars, trucks, ATVs and boats

What light configurations can I run with the two leads?

Two independent leads let you feed two separate LED fixtures or light bars from one harness—useful for roof bars, bumper bars, or combinations of spot and flood lamps. Each lead terminates with a DT connector for a quick plug-and-play hookup to DT-compatible lights.

• Two output leads for dual fixtures or zoned lighting control
• DT connectors eliminate soldering for compatible lights
• Works for asymmetric setups like upper and lower bars
• Suitable for combined wattage up to the harness’s maximum rating

How easy is installation and what should I prepare for?

This harness is packaged for straightforward installation but requires basic electrical skills and secure mounting for the relay and fuse. For long-term reliability, route wires away from heat sources and moving parts, and fasten connectors to prevent vibration damage.

• 11.5 feet length allows flexible routing through engine compartments and chassis
• DT connectors provide sealed plugs for outdoor use when matched to DT-equipped lights
• Switch, relay and fuse arrive pre-wired—mount and tie down as needed
• Professional installation recommended if unsure about vehicle wiring

What are the technical limits and compatibility notes?

The harness is engineered for 12V DC systems and uses 14AWG conductors; do not exceed the specified wattage to avoid overheating. Verify your LED fixtures accept DT connectors or use adapter pigtails when necessary.

• Wire gauge: 14AWG for consistent current handling
• Designed for 12V DC electrical systems
• Maximum recommended load based on harness design—confirm light wattage before connecting
• DT connectors require matching DT inputs on lights or compatible adapters

Who this is for: Installers, DIY vehicle owners and fleet technicians who want a ready-made, dual-output wiring harness with protective components for powering LED light bars and work lights. It's well suited for trucks, SUVs, ATVs, boats and equipment that use 12V systems and DT-style lighting connectors—but consult a qualified technician if you're not experienced with automotive electrical work.