SMAKN&reg; DC-DC voltage regulator module 12V 9V-22V to 12V 3A 36W automatic step-up / step-down power converter Input voltage: DC12V (Wide Voltage 9V-22V). Output voltage: DC: 12V. Output Current: 3A. Foot Power: 36W. Aluminum Volume: 74 * 74 * 32MM (L * W * H).