Will not impede on light output, perfect for offroad enthusiast. Protect LED work light from scratches,dust,gravels and other outer damage. Block the light output,keep your vehicle street legal in certain states. design,tight enough not to fall off. Easy to put on and remove in seconds. According to the length of your Light bar to decide to the number of pieces you need to buy. Note:The width of your light bar must be 3inch. The off-road light bar lens cover is the to add style and protection to your lighting setup. These lens cover are made of polycarbonate plastic snaps on and off of the light bars with ease and are available in colors to suit your preference. Product is great prptection for LED work lights/light bar lens from off road damage! Professional Installation is Highly Recommended as we do not have technicians on site to further assist. Why not one big cover? Having multiple piece covers helps in many ways. One great advantage is ease of storage. It's much easier to