Features: Easy adjustment, voltage and current are adapted to long handles, no tools required; Precise calibration, input and output voltage output current self-calibration, 0.01V voltage accuracy, 0.001A current accuracy; Various protections, anti-reverse connection-reverse non-burning, anti-reversing-directly connected to the battery, do not worry about the battery combustion module, no need for another series of diodes, overcurrent protection-output short circuit does not burn, battery current limiting safety; With DC5.5 input port, with USB output interface adjustable voltage; Five kinds of parameters, including capacitance display, input and output voltage indicator, output current display, power display, capacitance display; Output ripple is minimal and the output is LC filtered. Specification: Input voltage: 5-27V Output voltage: 1-24V Output source: the highest output power is about 3A, it is recommended to use within 2.5A Output power: less than 30W Voltage indicator: 0.01V resolution, factory accuracy ± 0.1V Active display: 0.001A resolution, 0-3A range, factory accuracy ± 0.05A; The display error is larger when the output current is less than 0.05A, small current within 10-40mA cannot be displayedCapacitance display: 0.001Ah resolution, 99.99Ah rangeConversion efficiency: less than 95%Working current: about 30mA Reverse connection protection: yesAnti-backflow output: yes, can be directly connected to the battery for charging, no need to add diodeShort circuit protection: yesDimensions: 7.4x5.6x3.1cm/2.91x2.2x1.22inchColor: As shown in the pictureQuantity: 1 setNote: 1. Please allow 0-1cm error due to manual measurement. Pls make sure you do not mind before bidding.2. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you!Package Included:1 Set Adjustable Buck Module