Features: 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.High power 3030 led chips, each bulb includes 21 pieces high power chips, 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.Quick and easy plug-and-play installation that fits right into original light housings. Description: 1.High power 3030 led chips, each bulb includes 21 pieces high power chips, much brighter than the normal chips in the market. 2.Color:6000K Xenon White. Red . Amber / Yellow 3.Raw lumen:1200 lms. Effective Lumen: 1000 lms. 4.Waterproof: IP65. 5.Voltage:12V to 24V. 6.Socket type: 7443 W21/5W 8.Rated Power: 5W Package Included: 2 X LED Bulbs