This European designed and manufactured power supply has continuous fan-less power capabilities up to 1000W. More details can be seen on the derating graph on the left-hand side. For line voltages below 172V_AC, the maximum fan-less power operation is 800W. It is also designed to handle peak power, up to 1200W without forced air cooling. Continuous forced air cooling is also an option to achieve higher power outputs. These power capabilities can be seen on the derating graph on the right-hand side.