Features: Power-supply for your electronic equipment, you can set the output value according to your system voltage. Support 2V low voltage input, no-fear of low voltage, especially suitable for 18650 high-power booster. Large power, input current limit up to 15A, output current-4A; 3.7V input, the output power can-reach 45W, 12V input, the output power can-reach 80W. Protection mechanism, input is connected with anti-burning, input overcurrent protection, input undervoltage protection, output anti-backflow, constant voltage and constant current, can be directly connected to the battery charging. High efficiency, two-stage filtering low-ripple, reliable and stable performance. Specifications: Material: Electronic Component Size:Approx.31.5x80mm/1.24x3.15inch Input voltage: 2~24V. Output voltage: 3~30V Port input current: 15A maximum Output current: the maximum is-4A (the-CC position-indicator is a current limiting potentiometer. When the current is limited, the CC-indicator lights up and enters the constant current-mode; BOOST boost structure, adjusting the limiting current can not directly short-circuit the output-terminal, but can be adjusted to the minimum counterclockwise first, and then rotated clockwise to increase the current after connecting the battery). Output power: under the input of 3.7V, the maximum is 45W；; Under 12V input, the maximum power is 80W；; Output-ripple: two-stage filtering, low-ripple output! Conversion efficiency: 82~95%. Input overcurrent protection: 15Afuse. Package Includes: 1x Boost Module note: ①.Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. ②.Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thanks for your understandings.