Feature:1. Wide Voltage Range: The buck converter has a wide input voltage range from 12V to 75V, allowing precise regulation of the output voltage.2. Manual Adjustment: All buck modules use screwdriver free potentiometers, which can be directly adjusted manually.3. Multiple Protection: The module has short circuit, over current, over temperature, over power, over voltage protection, and charging anti backflow protection.4. Fast Heat Dissipation: The built in chip of buck module can enhance heat dissipation, reliable and stable with high power.5. Applications: Buck modules can be used in motors, audio, monitors, LED car displays, air conditioners, fans, solar, photovoltaic.Specification:Item Type: Adjustable Buck ModuleMaterial: Aluminum alloy, PCBInput Voltage Range: DC12-75VOutput Voltage Range: DC2.5-50V adjustable (for applications where the input voltage is greater than the output voltage and cannot be boosted) counterclockwise to increase the voltage clockwise to decrease the voltageOutput Current: 15A (25A MAXIMUM)Operating Frequency: 150KHzIsolation Voltage: Non isolatedIsolation Voltage: Non isolated Output Power: 400W MAXIMUMBuilt in Fan Temperature Control: Yes (starts at about 45C at 12V)Conversion Efficiency: 95% typical, efficiency and differential voltage size load power size related input anti reverse connection: no (if needed please add a series of 2 diodes at the input)Minimum Differential Voltage: 3V (the higher the input voltage, the greater the minimum differential voltage requirement)Sizes: Approx. 85 x 58 x 38mm / 3.4 x 2.3 x 1.5in.Package List:1 x Adjustable Buck ModuleNote:This module does not have constant current function, can not directly output charging large battery can not directly with high power inductive load