10 sheets of light effect film. Run an LED string of lights behind the light effect film and get stunning light effects. Conjure up stylish decorative lights in no time at all with our different light effect films. Transform a wide range of crafts into effective lighting objects by sticking openings of all kinds with light effect film and lighting from the inside with an LED light source. Material Note: The light effect films are produced on large rolls with grid strips that serve as heat protection. When cutting into A4 and A5 formats, the strips are partially visible in different places, but less when they are illuminated. Tip: For smaller crafts, they can be easily cut out or covered with borders and line stickers.