{"product_id":"szdystar-led-driving-light-bar-wiring-harness-kit-400w-dc12v-with-remote-switch-12awg-cable","title":"Szdystar LED Driving Light Bar Wiring Harness Kit 400W DC12V with Remote Switch \u0026 12AWG Cable","description":"\u003cp\u003e\u003cstrong\u003eSzdystar's 400W remote wiring harness kit gives you a pre-wired, heavy-duty DC12V power solution to run one or multiple LED driving light bars safely and conveniently.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eThis complete wiring harness is designed for reliable auxiliary lighting installation without cutting factory circuits. It pairs a thick 12 AWG copper cable with a 40A relay, blade fuse, waterproof plug and a compact adhesive-backed remote switch so you can power and control LED driving lights up to 400 watts from inside or near your vehicle. Built for off-road use and daily drivers alike, the kit strikes a balance between durable materials and straightforward installation for mechanics and experienced DIYers.\u003c\/p\u003e\n\n\u003ch3\u003eHow does this harness handle high-wattage LED light bars?\u003c\/h3\u003e\n\u003cp\u003eThe kit is rated to supply up to 400W at DC12V, which covers most single-row and many dual-row LED bars. Heavy 12 AWG conductors keep voltage drop low so lights run efficiently, and a 40A relay plus blade fuse protect wiring and components from overloads.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003e400W maximum power handling (DC12V)\u003c\/li\u003e\n  \u003cli\u003e12 AWG copper core wire for reduced voltage drop\u003c\/li\u003e\n  \u003cli\u003e40A automotive relay and blade fuse for circuit protection\u003c\/li\u003e\n  \u003cli\u003eSupports single light bar or parallel-wired multiple lights within wattage limits\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat remote and control features come with the kit?\u003c\/h3\u003e\n\u003cp\u003eThe included remote offers convenient on\/off operation and multiple modes from up to 30 meters (about 100 feet) away. The compact switch has adhesive backing for easy mounting on a dash or roll cage, letting you place controls where they’re most handy during driving or work tasks.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eExtended remote range up to 30 meters (100 ft)\u003c\/li\u003e\n  \u003cli\u003eMountable adhesive-backed manual switch housing\u003c\/li\u003e\n  \u003cli\u003eSimple on\/off operation, fits in small interior spaces\u003c\/li\u003e\n  \u003cli\u003ePre-assembled leads minimize wiring time\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eIs this harness durable and weather-resistant enough for off-road use?\u003c\/h3\u003e\n\u003cp\u003eYes—the wiring uses PVC insulation and pure copper conductors with corrosion-resistant terminals for reliable performance in harsh conditions. A universal waterproof plug secures the connection to most LED bars, and components are rated to handle elevated temperatures typical of engine bays and exterior mounts.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003ePVC-insulated cable with corrosion-resistant terminals\u003c\/li\u003e\n  \u003cli\u003eUniversal waterproof plug to protect the lamp connection\u003c\/li\u003e\n  \u003cli\u003eTemperature rating up to 85°C (185°F)\u003c\/li\u003e\n  \u003cli\u003eQuality construction for repeated on\/off cycles and rough use\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eCan I use this harness on DC24V systems or multiple lights?\u003c\/h3\u003e\n\u003cp\u003eThe harness is set up for DC12V vehicles by default. If your vehicle runs DC24V, swap the supplied relay for a DC24V-compatible relay before installation. You can also wire multiple lights in parallel provided the combined wattage does not exceed 400W.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eDefault configuration: DC12V — swap relay for DC24V systems\u003c\/li\u003e\n  \u003cli\u003eParallel wiring supported when total load ≤ 400W\u003c\/li\u003e\n  \u003cli\u003eHarness length ~11.5 ft (3.5 m) for flexible routing\u003c\/li\u003e\n  \u003cli\u003eCheck local laws before using auxiliary lights on public roads\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for? The Szdystar 400W remote control wiring harness is ideal for vehicle owners upgrading to aftermarket LED driving bars—off-road enthusiasts, tradespeople needing extra work lights, and mechanics seeking a ready-to-install power solution. It’s also appropriate for knowledgeable DIYers who understand vehicle electrical systems or professionals who prefer a pre-assembled, heavy-gauge harness to speed up installations. Remember to verify vehicle voltage and local lighting regulations before fitting.\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 a 24V vehicle?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: It’s set up for DC12V; for DC24V you must replace the included relay with a DC24V relay before installation.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Can I run more than one light with this kit?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes—multiple lights can be wired in parallel as long as their combined wattage does not exceed 400W.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"Szdystar","offers":[{"title":"Default Title","offer_id":67590708854969,"sku":"B0GKVNNGQ1","price":77.53,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0822\/3765\/3177\/files\/szdystar-front-harness.jpg?v=1790536271","url":"https:\/\/redleafauto.ca\/products\/szdystar-led-driving-light-bar-wiring-harness-kit-400w-dc12v-with-remote-switch-12awg-cable","provider":"Redleaf Auto","version":"1.0","type":"link"}