- Working temperature : -40 ~105 °C - Bulbs Dimensions: 3.54 x 1.3 inch - Easy installation: Plug and Play, no tools needed Package includes: - 2x Xenon HID Bulbs - 6000K Here is the guide for Color Temperatures of HID bulbs: - 4300K = White with yellow tinge - 6000K = White with some detect slight blue - 8000K = White with blue tinge