5Pcs PMMA Convex Acrylic Lens Set 10-38mm Transparent Condenser Lens(5pcsx52mm)

【Versatile Size Set】Includes 5 pieces of transparent PMMA convex condenser lenses in sizes 10mm, 15mm, 18mm, 20mm, 23mm, 25mm, 28mm, 29mm, 30mm, 32mm, 35mm, and 38mm (one size per set) – perfect for customizing your zoom flashlight or bike head lamp. 【 PMMA Material】Crafted from durable acrylic (PMMA) with excellent light transmission and heat resistance. Each lens is precisely ground to a convex shape, ensuring efficient light focusing and condensation for brighter beam output. 【Precision Fit & Easy Installation】Manual size measurement with an error margin within 0.3mm, ensuring a snug fit for most standard flashlight and bike lamp housings. Lightweight and easy to replace or upgrade your existing lens. 【Ideal for Zoom Flashlights & Bike Lamps】Specifically devised for zoomable LED flashlights and bicycle head lamps. The convex devise helps concentrate light into a focused beam, enhancing visibility and range for outdoor activities. 【Practical Repair & Upgrade Kit】A cost-effective solution for repairing or upgrading your flashlight or bike lamp. Whether you need a replacement lens or want to experiment with different focal lengths, this set offers the flexibility you need.