Kaier H4 Relay Harness – H4 Headlight Brightener With Fuse Protection

This headlight booster effectively upgrade the halogen or xenon bulbs of cars. Fixes overheating plugs or overloaded switches, dim lights, flickering lights, back feeding power, etc. This harness bypass the power draw from the headlight switch and pulls the power directly from car battery unlike the conventional way that possible overload the headlight switch. Stock headlight switch is used to activate relays. Universally fit for most cars.Legal way to increase brightness of lightsLonger lifespanFixes overheating plugs, overloaded switches, dim lights, flickering lights, back feeding power, etc.