Flat Convex PMMA Condenser Lens for LED Flashlight, Bike Headlamp and Zoom Light - Options Diameter 10-38mm(1pcx20mm)

Wide selection of sizes: choose from 12 diameters (0.394, 0.591, 0.709, 0.787, 0.906, 0.984, 1.102, 1.142, 1.181, 1.260, 1.378, 38mm) to fit various LED flashlights with zoo. omomomomomomomDIY lighting projects. High Optical Clarity - Made of high quality PMMA acrylic with 95% light transmission and an optical refractive index of 1.474, ensuring efficient light focus and minimal loss. Precision Flat Convex Device: The curved surface concentrates the light into a narrow beam, ideal for zooming mechanisms in tactical flashlights and bicycle headlights. Durable and Heat Resistant: Withstands operating temperatures from -58 °F to 842 °F, suitable for high power LED applications without deformation or yellowing. Easy Installation: Features an integrated edge/step for secure placement in flashlight housings. Please allow 1 piece of error due to manual measurement.