... outdoor use, water proof - Maximum Power: 10.3W - Maximum-power Voltage: 17.8 V - Maximum-power current: 0.58 Ampere - Open-circuit ... voltage: 21.9 volt - Short-circuit current: 0.66 Ampere - Size: ... , Water pumps, RV battery, Garden lights, Venting fans, etc.(Working voltage and current. Standard test conditions: AM1.5 Irradiance 1000 W ...