DROK DC Power Converter Step Down 4.5-24V to 1-20V 2A Buck Regulator with Red LED Voltmeter Ammeter Input: DC 4.5-24V Output: DC 1-20V ( Buck Mode, the input voltage must be 2V higher than Output voltage) Output current: 2A continuous output Ammeter: 0.00-2.00A ( Display output current only) Voltmeter: Display Input 4.5-24V, Output 1-20V