Transparent PMMA Convex Condenser Lens for Zoom LED Flashlight, Bike Headlamp & DIY Optics,1pcs(1pcx29mm)

Precision Convex devise: This lens features a convex shape, effectively focusing and condensing light for enhanced beam distance and brightness in zoom LED flashlights and bike headlamps. Versatile Size Range: Available in diameters from 10mm to 38mm (including 15, 18, 20, 23, 25, 28, 29, 30, 32, 35mm), allowing you to select the perfect fit for your specific flashlight or DIY project. High Light Transmittance: Made from PMMA (acrylic) with a light transmittance of up to 95%, ensuring minimal light loss and maximum output efficiency for your lighting applications. Durable & Heat Resistant: Constructed from high borosilicate glass with a working temperature range of -50°C to 450°C, providing reliable performance under extreme conditions. Features an edge/step for secure installation. Easy Installation & DIY Friendly: Each package includes 1 piece of lens. The edge/step devise simplifies placement and alignment, making it ideal for custom flashlight modifications, bike lamp upgrades, and optical experiments.