If you're looking to add some custom style and improved visibility to your GMC Sierra 1500, then the M&R light bars are the perfect solution! They fit perfectly behind the grille. They are sleek and subtle, but really are bold and eye-catching when it comes to the light output. One white light bar offers 15,000 lumens. Pack this with a dual set up for 30,000 lumens of bright white light. The amber is perfect for poor weather related conditions such as fog and low light conditions such as dust and sand. No matter if you choose a single or a dual set up, the light bars will definitely improve your visibility in rough terrain and safety.