... protection 3.CE,FCC,ROHS USA plug 12V 1A AC/DC power adapter with CE FCC ROHS : ModelXYYY-002AXYYY-002AXYYY-002AOutputDC output ... sure every unit with power ,without low voltage, without bad led indicator, low ripple, good appearance, with right cables, etc 4. Full ... every unit with power, no high voltage, no low voltage, no bad led indicator, low ripple, with right cables , no bad ultrasonic ...