1. Copper wire, HID xenon light system relay harness for Hi/Lo. Make your car the brightest lamp. Super power boost.
2. This auto flashlight booster is special for the car H4 bulb.
3. This relay wiring harness offers you crossover and road functionality packed with its easy plug-and-play configuration.
4. After installing this headlight booster, it will bulb car will be brighter than 50% than before.
5. Easy to install, no modification is needed, it is a long duration and a lighter output. Plug & play.
6. Excellent heat corrosion resistance copper cables.
