20mm 30mm Round Fresnel Lens 50mm Focal Length PMMA Threaded LED Condenser for Solar Lights DIY Projector(20mm)

Precision-molded PMMA Fresnel lens with 92% light transmittance for efficient beam focusing and uniform light distribution in LED lamps, stage lights, flashlights, and fishing lights. Threaded edge devise (0.3mm pitch) allows secure mounting in optical housings, simplifying assembly for solar LED condensers, spotlights, and custom lighting fixtures. Versatile for DIY projects: build your own projector, VR glasses, or magnifying viewer; also suitable for detailed observation, image enlargement, and optical research. Compact and durable: 1.8mm thickness, operates from -40°C to +80°C, resistant to yellowing and impact—ideal for prototyping and long-term use. Available in 20mm and 30mm diameters with 50mm focal length; compatible with standard LED modules, machine diodes, and optical bench setups for educational experiments.