LONGT LIGHTING GROUP has been one of the industry leaders due to providing high-quality products to clients and it is very possible for the company to achieve a greater advancement in the future. After years of special research and development, the products developed successfully break through the bottleneck of the pain points. We strictly stick to the concept of scientific design, which contributes to the unique appearance and easy-to-use performance of our Lighting engineering, lighting products. Also, we never use inferior raw materials and ensure they are all tested by our QC inspectors, thereby, guaranteeing Solar Cells quality. We believe that our product with so many advantages can bring benefits to all customers.
Place of Origin | China | Type | PERC |
Cell Efficiency | 19 | thickness | 175/180)+20/-10μm |
TTV | ≤27μm | Line marks | ≤ 13μm |
Warpage | ≤ 40μm | Side width | 156.75 ±0.25mm |
Straight angle | 90° ±0.2° | Chord length | 12.03±0.7mm |
Right angle | 8.5±0.5mm | Diagonal | 210±0.25mm |
Cracked | no |
Wafer size | 156.75*156.75mm | 158.75*158.75mm | 166*166mm |
Thickness | (175/180)+20/-10µm | (175/180)+20/-10µm | (175/180)+20/-10µm |
TTV | ≤27 µm | ≤27 µm | ≤27 µm |
Line marks | ≤27 µm | ≤ 13µm | ≤ 15 µm |
Warpage | ≤ 40µm | ≤ 40µm | ≤ 40µm |
Side width | 156.75 ±0.25mm | 158.75 ±0.25mm | 166 ±0.25mm |
Straight angle | 90° ±0.2° | 90° ±0.2° | 90° ±0.2° |
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