... current ,short-circuit protection 3.Warranty:2 years usa plug 5v 12v usb power adapter : Input Voltage100~240VOutput Voltage3~24VOutput Current2A maxPower15W maxSize75X28X45mmOEM & ... , no low voltage, no output, etc Assembly full inspection: to make sure every unit with power ,without low voltage, without ... level II standard.100% full load burn-in test for 1 hour, doing shock test per 10 minutes ...