Every vehicle that is on the road has a number of lights that are required for improved visibility. These clearance lights are situated around the vehicle where other drivers can see them easily. Either red or amber in color, they come in a variety of shapes, but it is the color that is critical.
In older vehicles it was common to simply place a colored lens over an existing lamp. When the lamp burned out, one removed the lens, replaced the lamp and then replaced the lens. Today, most lenses are self contained and must be replaced in their entirety. Camping World carries a large selection of such clearance lenses and lights for your convenience and can help you find the right match.