PMMA Convex Acrylic Condenser Lens 10-38mm Aspheric Optical for Zoom LED Flashlight Bike Head Lamp Replacement(1pcx18x8.4mm)

Precision PMMA Flat-convex devise: Crafted from acrylic (PMMA) with a Flat-convex structure, this lens effectively converges light to enhance beam and brightness for LED flashlights and bike head lamps. Versatile Diameter Options: Available in 10mm, 18mm, 20mm, 21.8mm, 23mm, 25mm, 28mm, 29mm, 32mm, 35mm, and 38mm sizes to fit various zoom flashlight and lamp housings. Choose 1 piece or 5 pieces per order. Aspheric Optical Surface: The aspheric shape minimizes spherical aberration and light distortion, delivering a cleaner, more concentrated light output compared to standard spherical lenses. Durable & Lightweight Material: Made from transparent PMMA Reusableplastic, this lens is impact-resistant, lightweight, and easy to install. Manual size measurement ensures accuracy within 0.3mm tolerance. Ideal for DIY & Replacement: Perfect for upgrading or repairing zoom LED flashlights, bicycle headlamps, and other optical projects requiring a reliable condenser lens. Compatible with standard flashlight lens mounts.