Fangrui Product Details Module Nature: Synchronous Rectification Non-isolated Step-down Constant Voltage And Constant Current Module Input Voltage: Dc8-35v Output Voltage: Dc1.5-30v (clockwise Increase, Vice Versa) Output Current: 15a (max) (if The Module Exceeds 65 Degrees, Please Strengthen The Heat Dissipation) Current Limiting Range: 0.25a-15a (clockwise Increase, Vice Versa) Maximum Power: 300w (max) Operating Frequency: 150khz Conversion Efficiency; Up To About (efficiency Is Related To The Pressure Difference And The Use Environment) Operating Temperature; 0-85 Degrees Celsius Output Short-circuit Protection: Yes (instantaneous Protection) Constant Current (the Current Constant Current Value Is Set, And It Cannot Be Short-circuited For A Long Time) Output Anti-reverse Flow: No (a Diode Can Be Connected In Series At The Output End To Prevent Reverse Flow) Input Reverse Connection Protection: Yes (mos Tube Anti-reverse Connection) Wiring Method: Terminal Block Colour:photo Color Material:plastic Package Contents: 1 X