2PC 30x30mm Optical PMMA Fresnel Lens Solar Condensor Focal Length 28/50/80mm

125mm/250mm/255mm PMMA Plastic Fresnel Lens Focal Length 1000mm Solar Condensor

150mm Optical Plastic Fresnel Lens Solar Condensor Focal Length Plane Magnifier

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

190mm Optical Plastic PMMA Fresnel Lens Solar Condensor Plano Magnifier

1PC Optical Plastic 100x100mm Linear Fresnel Lens PMMA Square Solar Condensor

1PC Round 90mm Optical PMMA Plastic Fresnel Lens Solar Condensing Magnifier

1PCS 12/20mm Mini PMMA Fresnel Lens Solar Condensor Magnifying Glass Lenses