Overall size: 395mm x 395mm
Fresnel size: 395mm x 395mm
Thickness: 2mm
Material: optical acrylic
Groove pitch: 0.5mm (50 grooves per inch)
Focal length: 330mm
Application: Solar energy collector system, start a fire under sunlight, hot water heater, solar furnace, LCD projector, computer screen magnifier, virtual reality game flight simulator, computer simulation game, TV magnifier ...

 Quantity   Unit price
   100~       $18.37
    50~       $20.41
    25~       $22.68
    10~       $25.20