PMMA Flat Convex Acrylic Concentrated Lens for Flashlight with Zoom, Lamp Bicycle Head, Light Spotlight (1PCx29mm)

【Precision Optical Device】Flat convex shape concentrates the light beam to improve brightness and concentrate on zoomed flashlights, bicycle headlights and spotlights. 【High Transparency PMMA Material】Made of clear acrylic (PMMA) with excellent light transmission, which ensures minimal light loss and long-lasting durability. 【Multiple Size Options Available】Compatible with lens diameters 10mm, 15mm, 18mm, 20mm, 23mm, 25mm, 28mm, 29mm, 30mm, 32mm, 33mm, 33mm, 33mm, 33mm, 33mm. 78 inches and 42mm Please confirm the size of your device before purchasing. 【Easy Replacement & Upgrade】Designed as a direct replacement lens for zoomable LED flashlights, bike lights and flashlights. Simple installation without modification. 【Accurate Dimensions】Manual measurement with 0.01 inch error. Package includes 1 piece of lens. Note: This lens is not compatible with high heat machines or applications.