1.255W power max 2.Mono-crystalline 3.TUV/IEC61215&61730,UL1703/CSA,MCS,KAS,CE,RoHS,ISO9001 ... 2008, ISO 14001:2004, BS OHSAS 18001:2007, SA 8000, PV Cycle3).Type: MonocrystallineElectrical parameters at Standard Test Conditions (STC) MONOPower ... Material Front cover (material / type / thickness)low-iron tempered glass / 3.2mmCell (quantity / material / type / dimensions)60 / monocrystalline / 156mm x ...