Monocrystal Solar Panel 18W/20W/23W

Mono DPM-18W DPM-20W DPM-23W Nominal peak power[Pmax] 18Wp 20Wp 23Wp Maximum power voltage[Vmp] 16.2V 17V 18V Maximum power current[Imp] 1.12A 1.18A 1.28A Short-circuit current[Isc] 1.19A 1.26A 1.38A Open-circuit voltage[Voc] 20.8V 21.3V 22.2V Optimized cell efficiency[η] 14.20% 15.80% 18.20% Module efficiency[η] 9.85% 10.95% 12.59%  Tolerance wattage: ±3%  Standard testing conditions: AM1.5, 1, 000W/M2, 25°C  Maximum system voltage: 715V DC  Dimensions: 630 x 290 x 25mm  Weight: 3.0kgs/pc  Resistance: 227g steel ball fall down from 1m height and 60m/s wind  Frame: anodized aluminum alloy  Glass: low iron high transmissive 3.2mm toughened glass  Warranty: 5 years for material and workmanship  90% power output in 15 years and 80% power output in 25 years