Chevy C10 GMC Sierra Chrome LED 3rd Brake Light Fitment: 88-98 Chevy C10 / GMC Sierra Ultra Bright L.E.D. Light Bulbs Deep L.E.D. Lighting that is Super Bright and Innovative Designs to Create an Unique Vehicle Appearance 100% Waterproof and Shock resistant Instruction is NOT Included; Professional Installation is Strongly Recommended