... to 18.4% 3.CE,ISO9001,ROHS certified 4.Portable 5.Best quanlity,price and servic 125mm monocrystalline solar cell with high ... Wafer Thickness: 0.220±0.030mm Front(-) PECVD SiN,1.75mm wide bus bars Back(+) Aluminium back surface field, 3.0mm wide soldering ... anti-reflection film, uniformity and beautiful appearance. GradeA Efficiency:17.0-17.2% 17.0-17.2% monocrystalline solar panel