... IEC, TUV, CE certification. High efficiency, high safety 180W Solar Module Manufactured in an ISO 9001:2008 Cartified Plant, and we ... CTemp.Coeff.of Pmax(TK Pmax)-0.549%/ CNormal Operating Cell Temp.44.4+/-2 C EFFICIENCY· Low voltage-temperature ... output at high-temperature condition· High efficient, high reliable solar cells ensure our product output stability MATERIALS· Advanced EVA encapsulation ...