output 30watttypepolycrystallineopencircuitvoltage21.6Vmaximumpowervoltage(Vmp)17.6Vshortcircuitcurrent(Isc)2.04Amaxinmumpowercurrent(Imp)1.7Aoutputtolerance(+-5%)28.5-31.5Woperatingtemperature-40℃to 60℃frameAluminumalloyefficiency15%connectionjunctionboxcableNOnumberofcells36glasstemperedglassbatteryvoltage12Vdimension513*536*25mmweight7pcs/BOX