Fast operation for voltage and current settings. Make analog integration and digital control functions combined in one. Set default boot open or close the output. This adjustable regulator module with AC or DC voltage input, the output voltage is 1.25V-28V DC continuously adjustable, versatile for DC board. Feature - Color: As shown. - Material: Plastics+Electronic Component. - Size: 7 x 6.8 x 2cm. - Input Voltage: DC: 0-30V; AC: 0-22V - Output Voltage: DC 1.25-28V - Output Current: 2A(Max.) - 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. - 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.