... 7.5,10,12,15,18,24,27,48V Switching Power Supply 120W Features:AC input range selectable by switchProtections: ... free air convection100% full load burn-in testFixed switching frequency at 25KHzLow costHigh reliabilitySPECIFICATION:MODELS-120-5S-120-7 ... 1mA / 240VACPROTECTIONOVERLOAD105 ~ 150% rated output power Protection type: Shut down o/p voltage, re-power on to recover. Switching Power Supply 120W