10-38mm PMMA Flat Convex Aspheric Lens for Zoom LED Flashlight Bike Head Lamp Replacement(Clearx29mm)

Precision PMMA Flat-convex devise: This aspheric condenser lens focuses and collimates light efficiently, ideal for zoom LED flashlights and bike head lamps. Multiple size options: Available in 10mm, 18mm, 20mm, 21.8mm, 23mm, 25mm, 28mm, 29mm, 32mm, 34mm, and 38mm diameters to fit various flashlight and lamp models. High light transmission: Made from transparent PMMA (acrylic) material, offering excellent optical clarity and durability for long-term use. Easy installation: Single-piece devise, compatible with most zoom flashlight and bike head lamp lens holders; simply replace the old lens for improved beam performance. Versatile application: Suitable for DIY flashlight upgrades, bike lamp repairs, lantern modifications, and other optical focusing projects requiring a Flat-convex aspheric lens.