Feature: 1. Supply power to your electronic equipment, you can set the output value according to your system voltage. 2. As a vehicle power supply, power supply for your laptop, PDA or various digital products. 3. Can be used to drive high‑power LED lights, charge batteries, lithium batteries, etc. 4. Suitable for high‑power LED constant current drive, lithium battery charging (including ferroelectric), 4V, 6V, 12V, 14V, 24V battery charging, Ni‑Cd Ni‑MH battery (battery pack) charging, etc. 5. Strict quality control and quality assurance, high safety factor, can be used with peace of mind. Specification: Item Type: Power Supply ModuleModel: 300W 20A Material: Brass + high thermal conductivity aluminum substrate Module Nature: Synchronous rectification, non-isolated step-down constant current constant voltage module, CC CV charging module Scope of Application: High-power LED constant current drive, lithium battery charging (including ferroelectric), 4V, 6V, 12V, 14V, 24V battery charging, nickel-cadmium nickel-metal hydride battery (battery pack) charging, solar panels, wind generators Input Voltage: 6-40VDC Output Voltage: Continuously adjustable (1.2-35VDC) for a long time below 32V (applicable to applications where the input voltage is higher than the output voltage and cannot be boosted) Output Current: Maximum 20A, within 15A for a long time (the temperature of the power tube exceeds 65 degrees, please add a fan to dissipate heat, high voltage output, please use derating) Current Limit Range: 0.2-20A (regulation) module, please add a fan if it exceeds 65 degrees. Minimum Pressure Difference: 3V Working Frequency: 150KHZ Conversion Efficiency: Up to about 96% efficiency is related to pressure difference and use environment Output Ripple: Ripple around 50mV (no noise) 20M bandwidth (for reference only) 24V input measured Operating Temperature: -10℃ to +75℃) (Please pay attention to the temperature of the power tube in actual use, and if the temperature is too high, please strengthen the heat dissipation or derate the use) Potentiometer Adjustment Direction: CW (increase), CCW (decrease) Output Short Circuit Protection: Yes (instantaneous protection) constant current (current setting constant current value can not be short-circuited for a long time) Input Reverse Protection: None Output Anti-Backflow: None, for the load self-charged or inductive load requires an additional 2-pole tube. Wiring Mode: Terminal block. Package List: 1 x Power Supply Module Note: Output Current Adjustment Method: 1. Adjust the CV potentiometer and set the output voltage to the voltage value you need according to your load requirements.2. Set the CC potentiometer for about 30 turns in CCW (that is, set the output current to the minimum), connect the LED, and adjust the CC potentiometer to the current you need. For battery charging, after the battery is discharged, connect to the output and adjust CC to the current you need. (When charging, you must use the discharged battery to adjust it, because the battery has more power. More, the smaller the charging current.)