This product is Cobra's cell color sorting and appearance defect inspection all-in-one machine, which almost completely solves the problem of quality inspection and classification based on image processing on the solar cell production line. As well as the detection of watermarks, water marks, color jumps, color differences and other defects that can be detected by automated testing equipment but with low accuracy and low reliability. Compared with the prior art, it has the advantages of more complete functions, higher detection accuracy, lower false positive rate, more types of detectable defects, better reliability, and automatic online detection. The system is divided into three models: Cobra-H (high resolution), Cobra-S (high speed), Cobra-B (backside inspection). The total sales volume has reached 10 million. This product has applied for more than 10 invention patents, 1 authorized invention patent, 2 authorized utility model patents, 2 authorized software copyrights, and passed the inspection of Jiangsu Software Testing Center.