{"product_id":"nilight-12v-dt-connector-wiring-harness-kit-14awg-12ft-single-lead-with-relay-inline-fuse-on-off-switch","title":"Nilight 12V DT Connector Wiring Harness Kit 14AWG 12ft Single-Lead with Relay, Inline Fuse \u0026 On\/Off Switch","description":"\u003cp\u003e\u003cstrong\u003eNilight 10018W is a heavy-duty 12V wiring harness with a DT connector, inline fuse, power relay and on\/off switch designed to plug directly into off-road LED light bars for a safe, clean installation.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eThis prewired kit streamlines connecting a single LED light bar to a vehicle, boat or any 12V system without splicing into factory wiring. It bundles a 14 AWG cable, a weatherproof DT connector that mates with many LED bars, a blade fuse for overcurrent protection, a relay for load handling and an accessible on\/off switch. The harness is supplied in a 12-foot length so you can route it neatly from the mounting location to the battery and switch panel.\u003c\/p\u003e\n\n\u003ch3\u003eHow does this harness simplify LED light bar installation?\u003c\/h3\u003e\n\u003cp\u003eThe Nilight 10018W eliminates guesswork with a ready-made plug-and-play loom that reduces cutting, soldering and separate connector hunting. Its DT connector ensures a sealed mating to many aftermarket LED bars, and the included instructions guide routing and battery connection. The relay takes switching load off the switch, protecting low-current switch circuits while the inline fuse guards the system.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003ePre-terminated DT connector for direct light-bar connection\u003c\/li\u003e\n  \u003cli\u003e14 AWG main feed supports up to 300W light bars\u003c\/li\u003e\n  \u003cli\u003eRelay handles high current so switch only triggers the relay\u003c\/li\u003e\n  \u003cli\u003eInline blade fuse protects against short circuits and overloads\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat safety features are built into the wiring kit?\u003c\/h3\u003e\n\u003cp\u003eSafety is layered: the harness pairs a dedicated power relay with an inline blade fuse to limit damage from overcurrent and shorts. The DT connector and molded cable ends reduce exposure to moisture and vibration. Using the correct gauge wire and protected relay routing helps maintain reliable connections under off-road conditions.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eInline blade fuse for circuit protection\u003c\/li\u003e\n  \u003cli\u003ePower relay isolates high current from the switch\u003c\/li\u003e\n  \u003cli\u003eWeather-resistant DT connector and molded ends reduce corrosion\u003c\/li\u003e\n  \u003cli\u003e14 AWG wire sized for typical 12V LED loads up to 300W\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow do I choose this harness for my vehicle or boat?\u003c\/h3\u003e\n\u003cp\u003eConfirm your LED bar uses a compatible DT connector and that your light’s wattage falls within the harness’s supported load. Measure run length to ensure 12 feet is sufficient for routing from mount to battery and switch location. If you need two light bars or custom lengths, consider dual-lead kits or separate extensions.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eVerify LED bar connector type matches DT plug\u003c\/li\u003e\n  \u003cli\u003eCheck total wattage — keep within the 14 AWG\/relay capacity (up to ~300W)\u003c\/li\u003e\n  \u003cli\u003eEnsure 12-foot harness length meets routing needs\u003c\/li\u003e\n  \u003cli\u003eUse additional kits for multiple bars or longer runs\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat tools and steps are required for installation?\u003c\/h3\u003e\n\u003cp\u003eInstallation requires basic hand tools and a battery terminal wrench. Mount the relay and switch in a dry, accessible location, route the harness away from sharp edges and heat sources, and connect the fused positive lead to the battery. Finish by testing functionality and securing all connections with zip ties or clamps.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eTools: wrench, wire cutters, screwdrivers, zip ties\u003c\/li\u003e\n  \u003cli\u003eMount relay and switch in protected areas\u003c\/li\u003e\n  \u003cli\u003eConnect fused positive lead to battery, ground to chassis\u003c\/li\u003e\n  \u003cli\u003eTest the light, then secure and protect the wiring run\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for: The Nilight 10018W harness is aimed at DIY vehicle owners, off-roaders, marine hobbyists and installers who want a straightforward, durable way to power a single 12V LED light bar without fabricating a custom loom. It fits users who prefer sealed connectors, a dedicated relay for safety, and a preassembled 12-foot harness to speed installation and reduce wiring mistakes.\u003c\/p\u003e\n\u003csection class=\"product-faq-snippet\"\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Will this harness work with my LED light bar?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: If your light uses a compatible DT connector and its wattage is within the 14 AWG\/relay capacity (up to around 300W), this harness will work.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Can I mount the relay and switch outside?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Relays and switches should be mounted in dry, protected locations; the kit components are durable but perform best sheltered from direct water exposure.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"Nilight","offers":[{"title":"Default Title","offer_id":48086821994654,"sku":"B076C5HV59","price":29.29,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0781\/2041\/9486\/files\/nilight-front-packaging-10018w.jpg?v=1785906694","url":"https:\/\/northtrailauto.ca\/products\/nilight-12v-dt-connector-wiring-harness-kit-14awg-12ft-single-lead-with-relay-inline-fuse-on-off-switch","provider":"North Trail Auto","version":"1.0","type":"link"}