Amorphous silicon thin film solar panel, sell well in Australia, Europe, South Africa, South and ... loads.11. Pre-installed cables ensuring quick and easy installation.12. A back sheet with drainage holes eliminates the risk ... crystalline will be around 12.5%. In conclusion, even the STC efficiency of thin film silicon solar cell is low, the ... . TUV/ CE/ RoHS/ IEC/ ISO/ CQC/ UL/ FSEC/ CEC solar panel