<ul><li>Round Optical PMMA Solar Fresnel Condensing Lens</li><li>Diameter: 350mm</li><li>Focal Length: 185mm 900mm</li><li>Thickness: 2mm</li><li>Material: Optical PMMA</li></ul> 350mm Big Dia Solar Fresnel Lens Optical PMMA Focal Length 185mm 900mm Solar Concentrator Large Magnifying Glass Round Optical PMMA Solar Fresnel Condensing Lens Diameter: 350mm Focal Length: 185mm 900mm Thickness: 2mm Material: Optical PMMA Transmittance: 92% Magnification: 3x This Fresnel Lens can be used on Plane Magnifier,Solar energy concentrator,flashlight lamp, Stage Lamp The temprature of the focus at sunny noon can be up to 362 Degree in 30 degree outdoor temperature.

XLJP Big Dia 350mm Solar Fresnel Lens Optical PMMA Focal Length 185mm /900mm Solar Concentrator Large Magnifying Glass(1PC,185mm)