10-38 mm Flat Convex PMMA Aspheric Lens for Zoom LED Flashlight Replacement Bicycle Head Lamp (Clearx10.5mm)

Precision PMMA Flat-Convex Device: This aspherical condenser lens focuses and collimates light effectively, ideal for zooming LED flashlights and bicycle lights. MULTIPLE SIZE OPTIONS - Available in diameters of 10mm, 18mm, 20mm, 23mm, 25mm, 28mm, 29mm, 32mm, 34mm and 38mm to fit different models of flashlights and lamps. High Light Transmission: Made from transparent PMMA (acrylic) material, providing excellent optical clarity and durability for long term use. EASY INSTALLATION One-piece device, compatible with most zoom flashlight and bicycle head lamp lens mounts; simply replace the old lens to improve the beam performance. VERSATILE APPLICATION Suitable for flashlight upgrades, bike lamp repairs, lantern modifications and other optical focus projects requiring a flat-convex aspherical lens.