Motor Vehicle Lighting 1. Constant IC Controller will impove the led bulbs' life span for it will keep the current stable even though the working voltage changes while working. 2. The bulbs equipped with constant-current driving IC and Aluminum Circuit Board. Fast thermal diffusion ,heat-resistant, no digital and VHF radio signal interference. 3. each bulb includes High power 27PCS 3030 LED chips So that it will be much brighter than the normal chips in the market. 4. Manufactured with high quality aluminum that is durable and weather resistant. All-in-one aluminum profile as heat conduction system,360 degree heat radiating. 5. IP65 waterproof makes it can work in any bad weather conditions. 6. Buy with confidence, We offer "TWO YEAR" warranty on item(s) . 7. Quick and easy plug-and-play installation that fits right into original light housings. Each bulb includes High power 21PCS 3030 LED chips So that it will be much brighter than the normal chips in the market. Color:6000K Cold White. Lumen:2800 LM. Effective Lumen: 2600 LM. Waterproof: IP65. Voltage:12-24V Rated Power: 6W Package Included:2 X LED Bulbs