SMAKN&reg; Synchronous Buck Voltage Converter DC-DC 48V (30-63V) to 13.8V 20A 276W Power Supply Module Waterproof Input voltage: DC:36V/48V (wide voltage 30V-63V) Output Voltage: DC: 13.8V, the output current: 20A 276W Size: 74 * 74 * 32MM (L * W * H) Weight: 0.3KG