Round 500mm Fresnel Lens Optical PMMA BBQ Solar Condensor Focal Lemngth 600mm

500mm Large Optical PMMA Plastic Solar Projector Fresnel Lens for DIY Projector,Plane Magnifier,solar concentrator. This Fresnel Lens can be used on DIY Projector,Plane Magnifier,solar concentrator. Material: Optical PMMA.

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