Headlights are fundamental to driving and they are a part of the safety circle that actually helps prevent accidents. When getting close to the end of their lives, headlamps shine less brightly, it's quite distracting if one of your headlamps is brighter than the other, and it certainly won't reflect road markings and traffic signs very well. DWVO high-quality headlights will let all of the light through, allowing your headlights to work the way they were originally made to. Tail lights are a necessity to anyone wanting to add that custom look to their car or truck. Tail lights are perfect for replacing any broken or faded factory tail lights, and give your car or truck an awesome new appearance. Compared to other styling modifications, DWVO tail lights are relatively inexpensive and extremely easy to install. HEADLIGHTS Specifications High Beam: 9005 (bulb NOT included)Low Beam: 9006 (bulb NOT included )OEM: 15199556,15199557,10366037,10366038Partslink: GM2520185, GM2521185, GM2502224, GM2503224 TAIL LIGHTS Specifications Location: Mounts using factory mounting locationsOEM: 19169017, 19169018, 19169004, 19169005Partslink: GM2800174, GM2801174, GM2800186, GM2801186 COMPATIBLE WITH 2003-2006 Chevrolet Silverado 15002005-2006 Chevrolet Silverado 1500HD2003-2004 Chevrolet Silverado 25002003-2006 Chevrolet Silverado 2500HD2004-2006 Chevrolet Silverado 35002007 Chevy Silverado ClassicIMPORTANT NOTE: Sometimes we may pack the item in 2 parcels because of the products are shipped from different warehouses, . Pls don't worry if you only receive headlights or tail lights. The other parcel will arrive to you sooner. FEATURES Waterproof & Dustproof DWVO lights are made to withstand the most rigorous weather conditions and prevent moisture and dust from getting inside the housing. Premium Quality Made by OEM approved & ISO certified manufacturers, with materials that meet or exceed OEM requirement. Easy Installation These bolt-on style lights are designed for quick and easy installation. There's no need for any modifications, they drop right into the factory location.