Model: WVC-600W Rated voltage: 220 V PV recommendation: 2 x 300W-375W Recommended PV (Voc): 34 ~ 50 V DC MPPT Tracking Voltage: 28 ~ 40 V DC Maximum input current: 26A Maximum units per branch: 10 pieces Frequency: automatic switch 50/60Hz Ambient temperature: -40°C to +65°C Dimensions: 283 mm x 200 mm x 41.6 mm