Cop chip X7 Serial H4 9004 9007 Auto Car LED Headlight Bulbs with High Low Beam Spec. In Detail: 1. High brightness: The latest cob with 6000K cold white LED chip; 200% brighter than the existing halogen headlights. Advanced technology ensures perfect beam patterns without any black spots or fog lights. 2. Strong heat dissipation: equipped with highly silent heat dissipation fan, speed up to 12000/min, heat dissipation efficiency, can avoid temperature accumulation on the beads, prolong the service life of the beads. 3. Simple Installation: Installation only takes 10 minutes. No relay. There is no capacitor. No additional wiring. Plug and play. 4. IP68 waterproof: using an integrated radiator and aluminum body self-cooling, waterproof and heat-proof. Even in extreme cases, the enclosure of the rainproof driver can work properly. Automatic short circuit protection. 5. Glow on all sides: 360 degrees no dead angle lighting, use more clear and bright at night