Overview This AC/DC power adaptor normally used with security/spy camera receiver & some that require DC 9V/1A power source.. INPUT: 100 240V ~ 50/60 Hz OUTPUT: 9V ~ 1ACONNECTOR: OD :4.0 mm Inner Diameter: 1.7mm Specification This AC/DC power adaptor normally used with security/spy camera receiver & some that require DC 9V/1A power source.. INPUT: 100 240V ~ 50/60 Hz OUTPUT: 9V ~ 1ACONNECTOR: OD :4.0 mm Inner Diameter: 1.7mm