LM317 AC/DC Adjustable Voltage Regulator Step-down Power Supply Module with LED Display

Features: Adjustable regulator module with LED display. 2A or less can be loaded, AC or DC voltage input. The output voltage is 1.25V-28V DC continuously adjustable, versatile for DC board. Using double adjustment potentiometer to ensure good contact, effectively protect the load. Notice: The minimum differential between input and output is 3V; the input must be higher than the output voltage above 3V to be regulated. Buck, not boost, when input 5V output 1.25-2V, not 6V. Discounted at only: US$ 8.41