ITEM NAME:Step Down Module 20A 300W Power Supply Voltage Regulator DC-DC Buck Converter Product Description Description: Specifications: Size: 60 * 53 * 30mm/2.36*2.09*1.18" Scope of application: high power LED constant current drive, lithium battery charging (including ferroelectricity), 4V, 6V, 12V, 14V, 24V battery charging, nickel cadmium nickel hydrogen battery (battery pack) charging, solar panel, wind turbine. Module property: synchronous rectification, non isolation, step-down, constant current and voltage module, CC CV charging module. Input voltage: 6-40V DC Output voltage: continuously adjustable (1.2-35V DC) under 32V for a long time (applicable to applications where the input voltage is higher than the output voltage, the voltage cannot be boosted) Output current: within 15A for a maximum of 20A for a long time (if the temperature of power tube exceeds 65 ℃, please add a fan for heat dissipation, and if the temperature of high voltage output is lower, please use it) Current limiting range: 0.2-20A (regulating) module over 65 ℃, please add fan. Minimum pressure difference: 3V Working frequency: 150kHz Conversion efficiency: the highest efficiency is about 96%, which is related to pressure difference and service environment Output ripple: the ripple is about 50mV (excluding noise) and the bandwidth is 20M (for reference only). Input 24V is measured Operating temperature: - 10 ℃ to + 75 ℃) (please pay attention to the temperature of power tube in actual use. If the temperature is too high, please strengthen heat dissipation or derating) Potentiometer adjustment direction: clockwise (increase), counterclockwise (decrease) Output short circuit protection: with (instantaneous protection) constant current (current setting constant current value can not be short circuit for a long time) Input reverse connection protection: None Output anti backflow: none, for load with electricity or inductive load, additional 2-pole is required Wiring mode: terminal block Outp.Output ripple: the ripple is about 50mV (excluding noise) and the bandwidth is 20M (for reference only). Included: 1 X Step Down Module. Minimum pressure difference: 3V. Input reverse connection protection: None.