Power (Pmax): 20W (maximum)
Power tolerance: ± 3%
Open-circuit voltage (Voc): 21.6V
Short-circuit current (Isc): 1.27A
Power voltage (Vmp): 17.2V (maximum)
Power current (Imp): 1.16A (maximum)
Cell type and series: Mono-crystalline, 36 pieces (4 x 9)
Dimensions: 630 x 290 x 25mm
frame: Anodized aluminum alloy

Construction:
Front: High transmission 3.2mm tempered glass
Rear: White polyester
Encapsulate: High-endurance EVA
Warranty:
10 years for product materials and processing technology
For power output, 90% within 10 years, 80% within 25 years