Headlight Relay Harness Install - A Mod to Preserve Those Switches, and Increase Lighting Output

Voltage drop Decreases lighting output by as much as 20% to 30% Many bikes have shown a 1 or even 2 Volt drop at the bulb, and I have confirmed this on my own Bikes. Headlight switches and connectors can break down early in a bike's life. After a relay kit install you will have a drop of .1 Volt. And you should never have to worry about those switches again.