– (2) H4 Diode High/ Low Harness
– For use with vehicles that use a H4 Dual Beam Bulb Only
– Sold in a pair
This harness is needed when a vehicle allows voltage on the low beam and high beam circuit at the same time. In other words, you turn on your Low beam and your High beam receives voltage as well.
This harness will block the voltage on the High beam when you have it on Low Beam and vice versa, allowing the HID Kit to function properly. You will be able to maintain proper HIGH/ Low function with this harness.