DescriptionOutput Power: 4 WUniversal Input Voltage:100-277 Vac,50/60 HzAC Input Current :100 mA max.AC Input Power Rating : 5.0 W max.Output Current and Voltage:30-400 mA 10-60 VdcFull Warranty :5 YearsTest Switch Indicator Light: Illuminated Test Switch, indicator LightBattery: Li-ion battery-3.7 V / 2500 mAhBattery Charging Current:300 mA max.Charging Time ≥24 HoursTemperature Rating (Ambient) :Li-ion 0°C to 50°C (32°F to 120°F)