Eyourlife Wiring Harness, Heavy Duty Wiring Harness Kit for Led Light bar 300W 12V 40A Fuse Relay On/Off Switch Relay 14AWG 12FT Length Universal Fitment Light Bar Accessories Eyourlife Switch Relay: Every light bar need one wiring harness,Eyourlife Power Switch Relay Wiring Harness IP56 Waterproof Illuminated On/Off Rocker Switch Eyourlife Security Harness: Eyourlife Relay will regulate the power to be consistent and prevent any surge, it also comes with a pre-installed inline fuse as well as Switch Operating Voltage: 12V Amp: 40A Power Relay Fuse: 40A Blade Fuse. 300W Power Switch Relay Wiring Harness: Easy install and will protect your led light bar; It is universal suitable for led work light, led light bar, HID and Halogen lights any 7" 10" 12" 20" 30" 40" 50"52"light bars that is within 300w. Buyer Guarantee - We stand behind our products 100% with a 12-month warranty. We do offer a 30-day money-back guarantee on all orders to allow you to test the Eyourlifes products in your daily life.