The Fiilex 8" Fresnel Lens for Q-Series LED Lights attaches easily to the front of any Q-Series light, narrowing its beam angle to 25 to 10° and increasing the intensity of the beam center lux by 15x. The Fresnel lens has been designed completely from scratch using a polycarbonate material makes the lens lightweight and damage-resistant while increasing transmission 10% over a normal glass Fresnel lens.