5-Pack Fresnel Lens Φ30mm(1.18") Focal Length 15/20/50mm Acrylic Fresnel Lenses for Solar Project,Equipment,Visual Education (Focal Length 50mm)
$34.00
Description
Diameter 30mm(1.18") with different focal length.Thickness: 2mm, Material: PMMA(acrylic).Great for Visual Aid education, Solar heating experiment, DIY Solar concentrator, Scientific Research, Magnifying..High light transmittance, High efficiency in focusing, High precision..We are professional maker for high-precision fresnel lenses
