Universal input voltage Wall-mount type (usb type output) Constant output voltage Light, and compact design On-line led power indicator Output power 5 w Ripple & noise 1% vp-p&100mvp-p nominal; Working flyback converters mode Load regulation 5% nominal Voltage regulation ¦5% Over current protection 120~150% Hold up time 20m sec. Min. @ nominal input ac voltage and rated load Operating temperature 0~+40℃