Attention: For some special European vehicles, there will be a fault light or LED flashing after installation. This is not an LED light failure.Cause: The LED lamp resistance is lower than the halogen lamp, so it prevents the car computer detecting the LED lamp.Solution: Contact us to purchase additional resistor Specifications: Input(A): 3.0A0.2ALED Chip: Brand cobChipLifespan: > 30000hrsPower:60W/Set, 30W/each bulbColor Temperature:3000K 4300K 6000K 8000K 10000K Ice blue dark blueLumen:L/4000LM, H/4000LMOperating Voltage: DC 9-32 VOperating Temperature: -40C ~ +85CHeat Diipation Theory: Aviation aluminum 6063 Two-way heat diipation channel: 1.All-in-one aluminum profile as heat conduction system,360 degree heat radiating2.High speed mute fan(12000R/Min),high Air flow for faster cooling rate Package Included: 2x LED headlight bulbs(Comes with Retail Box) 7 color choice Dark blue Very blue Ice blue 10000K Blue and White 8000K Blue and White.Almost no blue 6000K White 4300K Yellow and White 3000K Yellow