Features 1、INPUT AND OUTPUT: The input voltage of the buck module is 4.0‑38V, and the adjustable output voltage is 1.25V‑36V, suitable for a wide range of applications. 2、HIGH ACCURACY: Using voltage microprocessor, the error of the voltmeter is ±0.05V, the range is 0‑40V, with high accuracy. 3、WITH VOLTAGE DISPLAY: With voltmeter display and support for self calibration, when not needed, touch the left button to easily turn off. 4、OTHER FUNCTIONS: Touch the button to switch the measurement input or output voltage, with indicator display and save setting function. 5、SIMPLE CONNECTION: With terminal blocks, the solder wire connection points are retained, easy to connect without a soldering iron. 6、CIRCUIT PROTECTION: The adjustable voltage regulator module has overheat protection and short circuit protection functions for safe operation. Specification Item Type: Adjustable Buck Module Material: PCB Input Voltage: 4.0-38V (the input voltage should be more than 1.5V higher than the output voltage) Adjustable Output Voltage: 1.25V-36V continuously adjustable (input voltage needs to be 1.5V higher than output voltage) Output Current: Up to 5A, it is recommended to use within 4.5A Output Power: Up to 75W Conversion Efficiency: Up to 96% (efficiency is related to input, output voltage, current, and voltage difference) Load Regulation Rate: S(1)≤0.8% Voltage Regulation Rate: S(U)≤8% Package List 1 x Adjustable Buck Module 8 x Screw Accessories 1 x Heat Sink