Features: Programmable direct current Power Supply with Adjustable potential/Current, featuring reverse polarity security, software adjustable safety thresholds. Equipped with a 0.5 30V output scale, 3A/4A current capacity (upgraded with cooling), 35W/50W greatest, and an LCD displaying real time potential, current, power, capacity, and execution for precise control. Ideal for engineers, makers, and hobbyists working on lab equipment, battery charging systems, or smart home automation modules requiring consistent bill/strengthen potential conversion. Perfect for electronics workbenches, solar setups, or industrial applications needing stable power with low fluctuation (supported by π filters) and robust thermal management via thick heatsinks. This ABS built module doubles as a versatile potential conversion board and overcurrent protected bill/strengthen driver. Specifications: Input potential: 5.0-30 V Output potential: 0.5 - 30 V Output current: 3A stable, good heat dissipation up to 4A Output power: 35W of natural heat dissipation, 50W of enhanced heat dissipation potential display resolution: 0.01 V Power display resolution: 0.001A Conversion efficiency: about 88% progressive start: Yes Package Includes: 1xProgrammable machinin improve improve direct current adjustable potential stabilization power supply note: 1.Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. 2.Due to the difference between different monitors, the picture may not reflect the actual color of the item.