... / 6075HzPower Supply Type: External brickInput (line) voltage: 100-240 VAC, 50-60 HzOutput voltage/current: 12 volts at 4 amps maxEnvironmentOperating Temp ... , horizontal or vertical(Standard mount brackets are supplied)OSD ControlButtonsAUTO,+,POWER,-,MENUFunction Brightness, Contrast Ratio, Auto-adjust, Phase, Clock, ... RS232 CertificatesETL ,FCC,CE,RoHS 22inch SAW touch lcd display (dust-proof type)