Specification: Input Voltage: 8V-40V Output Voltage: 0V-32V Continuously Adjustable (can only be used as a module, the input must be greater than the output 3V or more) Output Current: Adjustable, up to 50A (recommended for use within 45A, current regulation, only works in constant current state.) Output Power: up to 800W (use for a long time is recommended to be used within 600W, please reduce power when using large differential pressure) Working Temperature: -20~ 65(when the working environment temperature is high, please pay attention to strengthen ventilation and heat dissipation when using) Working Mode: Synchronous Rectification Conversion Efficiency: up to 95% Whether Parallel Connection: Yes, Parallel Expansion Short Circuit Protecting: Yes, constant current value currently set by constant current Input Reverse Connection : Yes Overheat Protecting: Yes, the fan is activated at 40, the power output is turned off at 65 , and the temperature is restored to 38 to automatically the output Output Anti-Backflow: None, for charging or motor class, please add a diode to prevent backflow Wiring Method: Terminal Block or Soldering Terminal, VIN is Input, VOUT is Output Module Size:Approx.140×90×53mm/5.5×3.5×2.1in Mounting Hole Size: Length 130mm, Width 80mm Package Includes 1 x 800W Adjustable Step-Down Module with Heatsink Fan