Solar panels: MS-M190(72) 180W monocrystalline solar panels. Maximum Power (Pmax): 190W Weight: 17.0KGS. Specficiation: Power Tolerance: +/-3% Maximum Power Voltage (Vmpp): 36V Maximum Power Current (Impp): 5.3A Open Circuit Voltage (Isc): 43.2V Short Circuit Current (Isc): 5.56A Max System Voltage Voltage: 1000V DC. Temperature coefficients of Isc (%): + 0.1/ C Temperature coefficients of Voc (%): -0.38/ C Temperature coefficients of Pm (%): -0.47/ C Temperature coefficientts of Vm (%): -0.38/ C Temperature Range: -40C+80C. Surface Maximum Load Capacity: 60m/s(200kg/sq.m) Standard Test Conditions: AM1.5 1000W/m2 25C Cell Type: 125*125mm mono Number per Module: 72pcs(6*12) Features: 1) High reliability with guaranteed +/-3%power output tolerance 2) Strict quality control and power classification of modules 3) Use of premium quality raw material from leading world-wide suppliers 4) Withstands high wind-pressure and snow load,and extreme temperature variations. Dimension:1580*808*50mm Weight: 17.0kgs.