Please see below for the ratings of all sockets.
AC Plug 2x 220V 1.4A, 300W Continuous, 600W Surge Max
USB 5V up to 2.1A, 10.5W Max. Regulated
6mm Port, 12V, up to 10A, 120W Max
12V Cigarette Port, 12V up to 10A, 120W Max