The BrightSource Chevrolet/GM Specific LED headlight bulb upgrades are designed to improve the light output of the factory supplied headlight system. The BrightSource Reversible Base Heatsink LED Kit powers a much brighter, whiter light output than stock 9006 low beam headlight bulbs. Our Chevrolet/GM Specific wiring harness maintains your Daytime Running Light function (where applicable) without flickering or light out messages. An easy to install, plug and play, low beam headlight bulb upgrade solution for your Chevrolet/GM vehicle. 4000 Lumens, 6000K Color Output, 50,000-hour bulb life. Reversible base provides greater clearance with tight installations. Bulbs can be adjusted for perfect alignment with headlight reflector using the included allen key. One Year Limited Warranty on Manufacturer's Defects., 9006; Aluminum Heat Sink; 6500K; 2 Year Warranty