Wholesale H4 H/L cable

A single wiring harness for the installation of an H4-3 bi-xenon bulb. The harness includes wiring for connecting the ballast and bulb, as well as a control block for switching between high and low beams. It is essential for the proper use of the bi-xenon kit. In case of a control block failure, there is no need to uninstall the entire wiring; simply plug in a new control module.