Halo Automotive Premium H11 4300K HID Xenon Replacement Bulbs High Performance Xenon H11 4300K HID replacement bulbs (2 Plug and Play Bulbs) Easy installation- usually in 10 minutes or less (some cars may need professional installation) High Intensity Discharge (HID) Xenon Light Bulbs More Than 300% the Light Output of The Traditional Halogen Bulb Direct Plug-and-Play Installation Seamless Integration