Gila dark smoke 35 percent visible light transmission basic scratch resistant automotive window tint is the automotive films, the brand leader in DIY (do it yourself) auto window tint. Our best in class deep dyeing, coating and adhesive technologies have helped design higher performing, longer lasting films that are among the best in the marketplace. Gila manufactures and package our films at our world class manufacturing facility located in Martinsville, VA USA, in order to measure and ensure tight quality and performance standards from start to finish. The lower the visible light transmission percent, the darker the film.