10mm-38mm PMMA Convex Aspheric Lens for Zoom LED Flashlight Bike Head Lamp Replacement(Clearx40.8mm)

Precision molded PMMA (acrylic) convex lens with aspheric surface devise, offering efficient light focusing and uniform beam distribution for zoom LED flashlights and bike head lamps. Available in multiple diameter options: 10mm, 18mm, 20mm, 21.8mm, 23mm, 25mm, 28mm, 29mm, 32mm, 34mm, and 38mm – choose the size that fits your specific flashlight or lamp housing. Lightweight and durable Reusableplastic construction with high optical transparency, resistant to impact and suitable for outdoor or portable lighting applications. Ideal for DIY flashlight upgrades, custom bike lamp builds, lantern modifications, or replacing damaged condenser lenses in zoomable LED torches. Each package includes 1 piece of convex lens; easy to install with standard lens holders or retaining rings (not included).