SainSmart DC Step Down Converter 4.5-24V to 1-20V 2A Rrgulator, Constant Voltage Current with Volt Ampere Meter, Red LED Powered by SainSmart advanced technology Input voltage: DC 4.5-24V Output Voltage: DC 0.93V-20V (Buck Mode, input voltage must be 2V higher than output voltage) Output Current: 0-2.00A (Adjustable) Output Power: Max 20W