Porzellanperlen Fresnellinse φ50 mm (5 cm) Brennweite 28/40/50/60/70/80 mm Acryl Fresnel Lupe für Solar Project, Equipment Objektiv, Visual Bildung

Fresnel-Linsen sind meist verwendeten Konzentration, Solar Heizung, Geräte- und visuelle Ausbildung und hellen Gathering Anwendungen, oder Kochen im

5.8'' Plastic Fresnel Lens Focal Length 185mm 120mm 2pcs DIY Home

Fresnels Olden Lighting

Diameter 30mm(1.18) with different focal length Thickness: 2mm, Material: PMMA(acrylic) Great for Visual Aid education, Solar heating experiment, DIY

5-Pack Fresnel Lens Φ30mm(1.18) Focal Length 15/20/50mm Acrylic Fresnel Lenses for Solar Project,Equipment,Visual Education (Focal Length 50mm)

Number 1 Rated 6 Inches Glass Shower Light Cover For showers and other areas requiring wet location rating to keep the interior of the trim and

Four-Bros Lighting FLP 6 Inch Fresnel Glass Lens with White Plastic Trim-60 Watt Max. -for Wet Locations-Shower Can Light Trim-Ul Listed

2PCS/Unit big fresnel lenses Size: Φ240mm Focal length: 250mm Thickness: 3mm Material: PMMA(Acrylic) Visual Aid for education - Great for reading

2-Pack Round Fresnel Lens Diameter 240MM Focal Length 250mm for Solar Concentrator and Cooking Outside, Large Fresnel Lenses Solar Magnifier fire

80mm runde PMMA Fresnel kondensierende Linse Kunststoff. Diese Fresnel Linse kann auf Plane Lupe, Solarenergiekonzentrator, Taschenlampe, Bühnenlampe,

Solar FresnelLens PMMA Condensation Lens Focal Width Plastic Magnifier 2-Piece

80mm runde PMMA Fresnel kondensierende Linse Kunststoff. Diese Fresnel Linse kann auf Plane Lupe, Solarenergiekonzentrator, Taschenlampe, Bühnenlampe,