Features With short circuit protection and input reverse polarity protection. Wide output voltage range, large output current and maximum conversion efficiency of 95%. Over current protection, safer and reliable to use. Lower adjustable voltage, can be used as battery charger, constant current LED driver module. LCD display, dual voltage and current display. Specification: Item Type: Power Module Model: WD5020. Input voltage: 7 ~ 50 V. Output voltage: 0~36V stepless adjustable (can only be used as step-down module, input must be higher than 1V output or more) Output current: adjustable, 20A max (recommended to use in 15A It can naturally dissipate heat at 10A or less than 140W. If it exceeds, please strengthen the heat dissipation! Constant current requires output voltage of 2V or more to adjust. Current regulation can only work under a constant current state.) Output power: up to 300W (it is recommended to use less than 250W, please reduce the power when using high differential pressure) Operating temperature: -20~+75℃ (pay attention to the temperature of the supply tube when using, please strengthen the heat dissipation) Working frequency: 300 kHz. Conversion efficiency: up to 95% Short circuit protection: yes, constant current value currently defined by constant current Input Reverse Connection Protection: Yes Return output: No, please add a diode for charging! Wiring method: terminal block or solder terminal, VIN is an input, VOUT is an output Calibration Method:This module has calibration function, so you don't have to worry about the inaccuracy of the measurement display. Calibrate just once! The module was calibrated at the factory exit, if the module is displayed inaccurately, you can use the following method to perform calibration! Package list: 1 x Module 1 x Bag of Bracket Installation Screws Package List 1 x Module