Type Rigid , Cell type Monocrystalline 166x83mm , Number of cells 144 , Wattage 450 Watts , Voltage 38 V , Max current 8.9 A , Maximum system voltage 1500VDC , Module efficiency 20.4% , Temperature coefficient (Pmpp) -0.37%/℃ , Frame colour Silver , Operating temperature range -40 - +85 deg C , Dimensions 2108 x 1048 x 40mm , Weight 24.5 kg