Features: 1) Dimensions: 1,252 x 642 x 40mm 2) Pm: 40W (+/-10% tolerance) 3) Vm: 44V 4) Im: 0.91A 5) Voc: 64V 6) Isc: 1.19A 7) N.W.: 10kg 8) Aluminum frame 9) Junction-box with quick connectors 10) Warranty: no less than 80% of output power within 20 years 11) Quantity: at least 1,600pcs every month 12) Good quality and competitive price Packing: Wooden case