● Adjustable regulator dedicated chip LM317， 2.2A or less able to take the load， can be AC or DC voltage input
● Circuit increases load protection circuit， the load protection
● It is a rare versatile DC power board
● Its use is very simple， only two external resistors to set the output voltage
● In addition to its line regulation and load regulation better than standard fixed voltage regulator is good
● The maximum input voltage: AC / DC 3 - 40V
● Output voltage range: DC 1.25 - 37V continuously adjustable