10-38mm Flat Convex PMMA Condensor Lens, Aspherical Optical Lens for Zoom Flashlight and Bicycle Headlight Replacement (1pcx29mm)

Precise Optical Performance This flat convex condenser lens is made of PMMA material (acrylic) and is designed to effectively focus and collimate light to improve beam intensity in zoom flashlights and bicycle headlights. VERSATILE SIZE SELECTIONS Available in 12 common diameters from 10mm to 38mm (10, 15, 18, 20, 23, 25, 28, 29, 30, 32, 35, 36, 38mm), allowing you to find the perfect fit for your specific DIY or replacement project. Aspherical Device The aspherical surface reduces spherical aberration and improves light transmission efficiency, creating a clearer and more uniform beam pattern compared to standard spherical lenses. DURABLE & LIGHTWEIGHT: This lens is made of durable yet lightweight reusable PMMA plastic, shockproof and suitable for portable lighting applications. Manual size measurement with an error of 0.3 mm. Easy installation: each package includes 1 piece lens. Compatible with various zoom flashlights, bicycle headlights and other optical devices that require a flat convex condenser lens.