Akatsukiqi Square Fresnel Lens 200 * 200mm Focal Length 100mm 210mm 330mm For Physics Classroom,Solar Heating,Magnifiying 1pc (Size : Focal Length 100mm)
Akatsukiqi
Magnifying Glasses Great for Visual Aid education, Solar heating experiment, DIY Solar concentrator, Scientific Research, Magnifying.Solar energy concentrator,flashlight lamp, Stage Lamp The temprature of the focus at sunny noon can be up to 240 Degree. size: 200mm*200mm Focal length :100mm 210mm 330mm
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