07-12 GMC Sierra PERDE Xenon H11 Headlight Low Beam Light Bulbs Diamond White 6000K Light Bulbs Number: One pair of H11. Spec: 12V 55W. Single Filament Xenon & Krypton Enhanced Halogen Bulbs. 6000K Diamond White Look. Easy to install without modification, simple plug & play. Brighter Illumination and Safer Driving, DOT Approved Street Legal. Quartz Crystal Capsule manufactured by Pacific Quartz and pressurized with a proprietary gas combination to 15atm,Lifetime Replacement Warranty provided by PERDE Vehicle Application: 2007 2008 2009 2010 2011 2012 GMC Sierra