| Place of Origin |
Guangdong China (Mainland) |
| Brand Name |
Tongyi |
| Model Number |
TY-164 |
Fresnel lens Material: PMMA Size: 340x340mm Focal length: 170 Thickness: 2mm Groove pitch: 0.5mm Still with 240x240mm, 1206x126mm, 1000x860mm, 1040x780mm, 400x320mm etc.