Overview This AC/DC power adaptor normally used with security/spy camera receiver & some that require DC 19V/4.74A power source.. INPUT: 100 240V ~ 1.5A/50-60 Hz OUTPUT: 19V ~ 4.74ACONNECTOR: OD :5.5 mm Inner Diameter: 2.5mm Specification Weight Approx:270g Size Approx:11 x 4 x 3 cm