Overall size: 260mm x 260mm
Fresnel size: 260mm x 260mm
Thickness: 2mm
Material: optical acrylic
Groove pitch: 0.2mm (127 grooves per inch)
Focal length: 200mm
Application: Solar energy collector system, Quick start a fire under sunlight, projection TV projector, reading magnifier for low vision aid ...

 Quantity   Unit price
   100~       $11.60
    50~       $13.00
    25~       $14.40