07-11 GMC Sierra Denali Xenon HID Headlight Light Bulbs Conversion Kit Aqua White 8000K Fits 2007 2008 2009 2010 2011 GMC Sierra Denali Color: Aqua White; Temperature: 8000K, Bulbs size: H11 (12V 35W); Average Life: &gt;3000 Hours Please note: Some Car Model May Need HID Canceller Capacitor(for Warning Decoder Error/Flickering fix), which is NOT INCLUDED in this kit The kit includes 2 x Ballast, 2 x HID light bulbs, mounting brackets, hardware and instruction HID lights can give you better visibility in order to help you to overcome the severe driving conditions