EUROLITE Color Foil 129 Heavy Frost is a plastic diffusion foil for professional lighting applications. It is intended to modify the output of a spotlight by softening and spreading the beam, and is attached in a colour-filter frame positioned in front of a halogen spotlight. The foil measures 122 cm in length and 100 cm in width and weighs 0.13 kg. The product is supplied as a colour filter sheet and has no electrical connection or power requirement.