1,high efficiency 2,long life 3,easy installation 4,high wind and hail impact resistance Polycrystalline Solar Panel--270w1,SpecificationWeight:23kgCell:156mm ×156mmNumber of Cell:72(6×12)Dimension of Module:1956×992×50mm 2,CharacteristicsModel No.AT-72P-270Open circuit voltage (Voc)43.8 VOptimum operating voltage (Vmp)35.2VShort circuit current (Isc)8.52AOptimum operating current (Imp)7. ...