Solar cell.156*156mm, poly solar cell. 1.Grade a , efficiency:16%-18% 2.Stable performance.Long term stability and reliability Solar cell Name:156*156mm polycrystalline solar cell Dimension:156*156mm+/-0.5mm Characters:high quality to ensure the stabel and high photoelctricity conversion efficency;coating with deep blue sin4 anti-reflection film, uniformity and beautiful appearance. Grade:A Efficency:16%-18% Wafer thickness:0.220+/-0.030mm. Original package:100pcs in one carton, 10 cartons in one box.