100x70mm Optical PMMA Plastic Fresnel Lens Solar DIY Projector Plane Magnifier

2pc 20mm Mini Round Optical Magnifier PMMA Plastic Fresnel Lens Solar Condensor

2PC Round 90mm Optical Fresnel Lens PMMA Plastic Solar Condensor Magnifier

Optical PMMA Plastic Linear Fresnel Lens Solar Energy Concentrator Condensor

2PC Optical PMMA Linear Fresnel Lens 50X50mm Focal Length 150mm Solar Condensor

135X100mm Optical PMMA Plastic Projector Solar Fresnel Lens Plane Magnifier

2PCS 100x100mm Plastic Fresnel Lens Solar Condensor Magnifier DIY Projector