I was looking for options to replace my interior map lights on my truck. Since the lights are small LED's and are attached to a printed circuit board, the color cant me changed. I used the Red Transparent Calendered Film with the adhesive backing and covered the light lenses for the forward and rear map lights. The lights are bright enough that now the interior is basked a red glow. Plus, if I need to turn them on at night, it won't be blinding. I also used it to cover the small light in the center console. Just another way to use window tint.