Welcome to our shop! This Step Up Down Module is perfect for voltage boost and buck applications. It features an LCD digital display that shows input and output voltage, output current, and output power. The module is designed with input end anti-reverse connection protection to prevent burning out in case of reverse connection. You can easily adjust the output voltage from 0.5V to 30V and the current from 0A to 4A. The module utilizes a voltage boost and buck chip as the main controller, along with a 60V 75A MOS tube as the switch tube and double 60V 5A SS56 schottky as the rectifier. This design ensures sufficient voltage resistance and power. With the inclusion of an LC filter, the module produces minimal output ripple. The module is brand new and made of high-quality PCB material. It has an input voltage range of 5.5V to 30V and an output voltage range of 0.5V to 30V. The output current can work steadily at 3A for a long time and reach 4A with enhanced heat dissipation. The module has a natural heat dissipation power of 35W, which can be increased to 50W with strengthened heat dissipation. In terms of safety, the module has input reverse connection protection, anti-reverse irrigation at the output end, and short circuit protection. The module operates at a frequency of 180KHZ and has a size of approximately 66.2x48.1mm. Included in the package: - 1 x Step Up Down Module - 1 x Cooling Fin 100% Satisfaction: Our customers are our top priority. If you find any product problems after receiving the goods, such as damage and incorrect quantity of goods, please contact the seller immediately. We try our best to provide you with satisfactory after-sales service.