How come my H4 Bi-Xenon HIDs low beam stays on when I switch to high beam?
In the cases of some vehicles that use the H4 bixenon bulbs the polarity for the HI/LO BEAM on the power connector are reversed. If when you turn on your headlights and the LO BEAM comes on when your HI BEAM is switched on and vice-versa or your LO BEAM works and your HI BEAM flickers this should be your solution. The H4 bixenon harness we offer comes with a set polarity on the power connector like this. The BLUE wire is for HI BEAM ,WHITE wire is LO BEAM, BROWN wire is NEGATIVEFor some Toyota and Scion vehicles using the H4 bixenon bulbs the polarity for the WHITE POSITIVE, and the BROWN NEGATIVE need to be reversed like this. Here is one type of our Bi-Xenon hi/lo switch and power connectors.
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