... power supply High efficiency, high reliability, low costProtections: Short circuit / Over loadCooling by free air convectionLED indicator for power onFixed switching ... removedENVIRONMENTWorking Temp., Humidity -10+6020%90 %RH(Refer to output load derating curve)Storage Temp., Humidity -20+8510%95 ... includes set up tolerance, line regulation and load regulation Single Output Switching Power Supply