Power Polarity Switch 12VDC for cars with common plus socket (+) to use with our H13 or 9007 Bi-xenon or H4 of other make then our present H4 Premium Bi-xenon bulbs.

Common plus is found on most Japan (H4) made cars (also Volvo V40 with Mitsubishi diesel) and more new US cars would need the 9007 polarity changer for proper function.

Note that the normal Relaywire is not to be used together with Polarity Switch.

This Switch can be used on both common Minus and Plus vehicles (mode via buttons).

-- Option -- H4 H13 9007