... *50(MM)Number of cells 60PCSSize of cells(wide and high)156mm*156mm , MonocrystallineWeight per piece KG19.5KGSCertificates CE, ISO9001 ,TUVCable ... ,0.17mmConversion efficiencyCell conversion efficiency 17.1%Quality guarantee 5years product warranty,10years 90% and 20yesr 85% of the power 240W Monocrystalline solar panel solar module