Headlight Relay Installation The harness includes two high-quality Matsushita automotive grade 20-amp plug-in relays, each protected by a heavy plastic water resistant cover. It’s pre-wired with H4 ...

LED headlights throw extremely intense light with very little draw on your car’s electrical system. Now that they’re trickling down to the aftermarket, you can buy a simple plug-in “LED ...

Offered by Reenmachine, the package consists of a pair of Hella high-performance halogen H4 headlights and a modern high-output, relay-driven wiring harness.

How to adjust Mini Cooper headlights? Current-generation Minis use H4 Halogen in their low beam lights, and you need to ensure you have the ignition switched off and to never, ever touch the globes ...