1、Input terminal anti‑reverse connection protection, reverse connection will not burn, with stable performance and safe operation 2、High efficiency above 93%, high current, low heat, to meet your needs, you can use the voltage regulator with confidence 3、The output voltage can be adjusted arbitrarily from 1.2-32V, and the constant current value can be adjusted around 0-4.5A, which meets the needs of various working scenarios 4、The LCD can display input voltage and output voltage, output current and output power, which is convenient for reading and gives you a good experience 5、Widely used, suitable for office power supply, high‑power LED constant current drive, lithium battery storage battery charging and other situations, the main purpose is to reduction voltage Item Type: Voltage Regulator Material: Printed Circuit Board Model: ZK-J5X Output Current: 3.5A Output Power: 50W Current Display: Resolution 0.005A, Range 0-4.5A, Accuracy ±0.05A Conversion Efficiency: About 94% Working Current: About 30mA Input Reverse Connection Protection: Yes Short Circuit Protection: Yes Purpose: Depressurization Applicable Scenarios: Office Power Supply, High-power Led Constant Current Drive, Lithium Battery Storage Battery Charging, Etc. 1 x Voltage Regulator 1 x Heat Sink 2 x Acrylic Shell 4 x Blue Button Cover 8 x Copper Pillar 9 x Screw