--- product_id: 18689185 title: "LED Light Bar Wiring Harness 12V 40 Amp Relay with Heavy Duty 16 Ga AWG Wire for Off Road/ATV Light Bars Up To 300W / 50 Inches On Off Switch" brand: "keyline chargers" price: "FREE" currency: THB in_stock: false reviews_count: 8 url: https://www.desertcart.co.th/products/18689185-led-light-bar-wiring-harness-12v-40-amp-relay-heavy store_origin: TH region: Thailand --- # LED Light Bar Wiring Harness 12V 40 Amp Relay with Heavy Duty 16 Ga AWG Wire for Off Road/ATV Light Bars Up To 300W / 50 Inches On Off Switch **Brand:** keyline chargers **Price:** FREE **Availability:** ❌ Out of Stock ## Quick Answers - **What is this?** LED Light Bar Wiring Harness 12V 40 Amp Relay with Heavy Duty 16 Ga AWG Wire for Off Road/ATV Light Bars Up To 300W / 50 Inches On Off Switch by keyline chargers - **How much does it cost?** FREE with free shipping - **Is it available?** Currently out of stock - **Where can I buy it?** [www.desertcart.co.th](https://www.desertcart.co.th/products/18689185-led-light-bar-wiring-harness-12v-40-amp-relay-heavy) ## Best For - keyline chargers enthusiasts ## Why This Product - Trusted keyline chargers brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Description Full description not available ## Features - Make sure this fits by entering your model number. - UP TO 50 INCH LIGHT BARS: & 300 watts. This heavy duty designed 40 amp relay - switch is designed by our electrical engineers who took the best selling wiring harness (rymes with Lamphus ;)) and read their reviews and designed a better safer wiring kit. Our engineers said it is necessary to use a 16 gauge wire (not 18) throughout to handle the current of a 300w or up to 50 inch light bar. Read their reviews and decide. - DURABLE: As you can see we wrappped our harness in a weather and damage resistant sheath and use the highest quality components to ensure years of trouble free use. Our factory manufactures the relays so we did not go looking for the cheapest Chinese parts to assemble this kit for you. Long term customer satisfaction and building relationships for life is our goal. - WEATHER PROOF: IP65 certtified red LED illuminated on off switch was a necessary edition knowing how hard many of our customers go. Off Road durable for extreme shock and vibration and water resistant for you amphibians - WIRING KIT INCLUDES: 1 IP65 waterproof red illuminated on off rocker switch, 9 feet of harness wiring with dual wire leads, 9.5 feet of neutral (white) wire (from harness), 6.5 feet of power wire (red for switch), 3.5 feet of ground wire (black for switch), 30 amp blade fuse, 40 amp relay and 4 insulated male wire connectors (for light bar leads) - BUY WITH 100% CONFIDENCE: You are covered by our 100% Satisfaction No Questions Asked Guarantee and full 1 year warranty. ## Images ![LED Light Bar Wiring Harness 12V 40 Amp Relay with Heavy Duty 16 Ga AWG Wire for Off Road/ATV Light Bars Up To 300W / 50 Inches On Off Switch - Image 1](https://m.media-amazon.com/images/W/WEBP_402378-T1/images/I/51SarGDmhML.jpg) ![LED Light Bar Wiring Harness 12V 40 Amp Relay with Heavy Duty 16 Ga AWG Wire for Off Road/ATV Light Bars Up To 300W / 50 Inches On Off Switch - Image 2](https://m.media-amazon.com/images/W/WEBP_402378-T1/images/I/61G6pvWR6UL.jpg) ![LED Light Bar Wiring Harness 12V 40 Amp Relay with Heavy Duty 16 Ga AWG Wire for Off Road/ATV Light Bars Up To 300W / 50 Inches On Off Switch - Image 3](https://m.media-amazon.com/images/W/WEBP_402378-T1/images/I/71oS0dpg7vL.jpg) ![LED Light Bar Wiring Harness 12V 40 Amp Relay with Heavy Duty 16 Ga AWG Wire for Off Road/ATV Light Bars Up To 300W / 50 Inches On Off Switch - Image 4](https://m.media-amazon.com/images/W/WEBP_402378-T1/images/I/91kz2eL8qBL.jpg) ![LED Light Bar Wiring Harness 12V 40 Amp Relay with Heavy Duty 16 Ga AWG Wire for Off Road/ATV Light Bars Up To 300W / 50 Inches On Off Switch - Image 5](https://m.media-amazon.com/images/W/WEBP_402378-T1/images/I/61pzUrhBMIL.jpg) ## Customer Reviews ### ⭐⭐⭐⭐⭐ this kit was SUPER EASY to get wired up *by J***E on Reviewed in the United States on March 29, 2016* First off i want to start off saying i am no idiot when it comes to electrical wiring...I ordered this kit and it came in today 3/28/16 and I already had a 32INCH 180W EPISTAR COMBO LED Light i got off ebay and installed it on the truck..this kit was SUPER EASY to get wired up....the only problem i had was my light bar didnt not have plugs on it so i had to clip the connectors off and just used butt connectors to power it up but it worked great and took no time to hook up and it all worked...its almost dark enough now to go test it out and see how bright the light it but definitely worth the price i paid for it and would recommend this kit to anyone....thanks for a easy install wiring kit!!!! ### ⭐⭐⭐⭐⭐ Worked Well *by E***T on Reviewed in the United States on January 6, 2017* This is a kit my husband ordered. He always uses my account for things. We took his 4Runner to a mechanic to put everything in, because he wanted to have this attached to a bull bar (which he purchased separately along with lights he also purchased separately) and wanted to put it in as a separate switch to not come on unless he wanted the lights to. Apparently, it can be wired two different ways: to come on when the lights do, or to come on only when you want them to.The red on/off button is bright red; so, it is easy to see. ### ⭐⭐⭐⭐ It would seem like they could add a couple of extra feet of ... *by M***B on Reviewed in the United States on May 25, 2017* This worked well, but some of the wires weren't long enough and had to be spliced. It would seem like they could add a couple of extra feet of wiring(to the dash panel) without breaking the bank! --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.co.th/products/18689185-led-light-bar-wiring-harness-12v-40-amp-relay-heavy](https://www.desertcart.co.th/products/18689185-led-light-bar-wiring-harness-12v-40-amp-relay-heavy) --- *Product available on Desertcart Thailand* *Store origin: TH* *Last updated: 2026-04-28*