Square Fresnel Lens 30x30mm 50x50mm PMMA Threaded DIY Projector Solar Condenser Magnifier(50x50mmx70mm)

High-transmittance PMMA material delivers 92% light transmission, ensuring bright and efficient focusing for solar condensation, projection, and magnification tasks. Precision threaded edges allow easy mounting and integration into DIY projector housings, stage lights, flashlights, or custom optical assemblies without extra adhesives. Available in 30x30mm and 50x50mm sizes, this 2mm-thick square lens is lightweight yet durable, withstanding temperatures from -40°C to +80°C for versatile indoor and outdoor use. Ideal for adjusting beam angles in LED lights, fishing lights, and stage lighting, or for magnifying fine details in observation, imaging, and product development projects. Perfect for optical experiments, research, and prototyping—whether you are building a solar concentrator, a projector, or testing light behavior, this lens offers consistent, repeatable performance.