Specification: Lens color: Smoked/Amber light color: White/Yellow Connection mode: Black wire(negative pole) Red wire(positive pole) Led quantity: 6 LEDs in SIDE markers and 12 LEDs in center lamp Waterproof grade: IP68 Service life: more than 50000h Features: Super bright & Sturdy: Dark smoked lens with super bright white LED lights (6 LEDs in SIDE markers and 12 LEDs in center lamp). Waterproof: The rain-proof design of brake light works even under extreme conditions such as rain and snow(IP68). Multi-function: This smoke Lens Cab Marker Light functioned as Roof Marker Light, Roof Top Running Light, Top Clearance Light, Cab Running Light etc. Superior material: Manufactured with high quality ABS molded palstic for preventing fading from long exposure. Fitment: 2002-2006 Chevy Silverado 2007 Chevy Silverado Classic 2002-2006 GMC Sierra 2007 GMC Sierra Classic Packaging included: 3x Roof Marker Light Note: Please confirm the vehicle model before purchasing!!! With high quality materials that ensure improved performance and long lasting durability. No instruction in the package, professional installation is high recommended. Please feel free to contact us for whatever we can help via eBay message.