Square Fresnel Lens 30x30 40x40 50x50 100x100mm PMMA Acrylic DIY Projector Condenser Magnifier(40x40mm-FL70mm)

Precision-molded PMMA Fresnel lens with 92% light transmittance for efficient light concentration and beam control in DIY projectors, stage lights, flashlights and fishing lights. Available in various sizes (30x30mm to 100x100mm) with focal lengths from 28mm to 150mm, offering flexible options for various optical configurations and experiments. Threaded surface device (0.015" or 0.02" pitch) improves light diffusion and focus accuracy, suitable for capacitor applications and beam angle adjustment. The durable acrylic material withstands temperatures from -40°F to +176°F, ensuring reliable performance in lighting or optical devices for both indoor and outdoor use. Ideal for optical research, product development, enlarging small details or upgrading LED lamps: each package includes a lens for your specific project needs.