my light are plenty bright at night with hids, i did it because i like the way it looks during the day, and its uber thick film so its actual purpose is not to change the color of your lights but to protect them, i do a lot of off-roading and unorganized rallying so i dont want my lenses gettin smashed considering all the housings and lenses on the front of my car are brand new. the film on mine comes in blue, yellow, clear, and 2 shades of smoked