5pcs Flat Convex Acrylic PMMA Lens Set 10-38mm Clear Condenser Lens(5pcsx29mm)

PRECISION OPTICAL GRADE PMMA - Made of high transparency PMMA (acrylic) material, these flat convex lenses offer excellent light transmission and focus performance for LED flashlight with zoom and bike headlights. VERSATILE SIZE SET - Includes 5 pieces in sizes 10mm, 15mm, 18mm, 20mm, 23mm, 25mm, 28mm, 29mm, 30mm, 32mm, 35mm and 380mm in [a dimension For set, please select the required diameter). Each lens is manually measured with a tolerance within ±0.3mm. Devise convex plate: the flat shape on one side and convex on the other effectively concentrates and directs the light rays, making it ideal for zoomable torch heads and upgrades' optics of bicycle lamps. EASY INSTALLATION & DIY-FRIENDLY - Lightweight and handy, these acrylic lenses can be placed directly into the lens holder of compatible flashlights or projectors. Perfect for hobbyists, repair technicians and DIY lighting projects. Wide application: suitable for LED zoom flashlights, bike headlights, camping lights, projectors and other optical focusing systems. Not compatible with machine modules or high heat applications.