Product Parameters: Voltage: 12V Current: 3A/4A/5A Input: 220V / 110v Product size: about 12*5*3cm / 4.72*1.97*1.18in Cable length: about 80cm / 31.50in DC interface specification: about 5.5 * 2.5mm-2.1mm / 0.22 * 0.10-0.08in