... home or commercial or industrial etc SpecificationsSolar cell.156*156mm,poly solar cell. 1.Grade A ,efficiency:16%-18% 2.Stable ... CellName:156*156mm polycrystalline solar cellDimension:156*156mm+/-0.5mmCharacters:High quality to ensure the stabel and high photoelctricity conversion efficency;Coating ... 6220.6200.6180.6160.6140.6120.609 A grade poly solar cells,solar wafer,solar panels,good quality