Refractive index:1.474Operating temperature: -30° to +80°
Light angle: adjustable angle (through the lens and the distance between the LED adjustment, you can get the actual condenser angle) Optical glass convex lens for LED lighting, car lights, focusing flashlight, spot light, explosion-proof lights, downlights, laser condenser, sensors, optical instruments, floodlights and other lighting products. With high temperature, Aging, high strength, high light transmittance. Spot uniform, no black hole, shadow, dark area. Can be used with a variety of high power LED1W, 3W, 5W, 8W, 10W 15W 20W, 50W and other ultra-high power LED product applications.