Outer circle diameter: 74MM Inner circle diameter: 70MM Height: 27.5MM Edge thickness: 4MM Transmittance: 99% Focal length: 58MM Angle of light: adjustable angle (through the distance between the lens and the LED, can be obtained from the practical point of view) Material: high temperature resistant high boron silicon Optical glass convex lens is dedicated to LED lamp, automobile lamp, flashlight, projector lamp, selection of high boron silicon materials resistant to high temperature, angle can adjust 10-80-90, can cope with all kinds of high power LED, the spot is very uniform, no black hole, shadow, the dark zone. For 1W, 3W, 5W, 8W, 15W, 20W, 50W, 100W, 10W,, LED
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