Optical Flat Convex Acrylic Lens Outer Diameter 10.4-66mm for Flashlight LED Focusing, 1PC(OD42 ID37)

High light transmission: Made of optical acrylic (PMMA), this lens provides up to 90% light transmission for clear, brilliant lighting in flashlights and LEDs. Wide Size Range Available with outer diameters from 10.4mm to 66mm, compatible with various flashlight, flashlight and headlight models for versatile use. DURABLE & HEAT RESISTANT Durable PMMA construction withstands temperatures up to 220°F (105 C) ensuring long-lasting performance in stage lighting, landscape lighting and more. PRECISE FOCUSING The flat convex device provides a strong, sharp concentration for your flashlight or LED flashlight, improving beam intensity and projection accuracy. EASY IDENTIFICATION Dimensions labeled as OD (outer diameter), ID, H (height) and E (edge thickness) in mm; manual measurement tolerance within 0.5mm.