The Fiilex 8" Fresnel Lens FLXA036 simply attaches to the front of any Q Series lights and increase light output dramatically. Achieve up to 15X greater output in the center of beam. Provides a narrow beam field of 25 - 10°. The Fiilex 8" Fresnel is a completely new design with a carbon fiber housing and polycarbonate lens. The carbon fiber makes it lightweight and durable, while the polycarbonate increases output by 10% over a traditional glass fresnel lens.