https://www.huasunsolar.com/products/hjt-solar-cell/ Extremely low temperature coefficient, No LID & PID. Huasun HJT solar cell was made of ultra-thin N-type silicon wafer which employs SMBB and μc-Si technology. The maximum efficiency has reached 25.61% in mass prodution, and there is a clear path of efficiency improvement with huge potential.All Rights Reserved