Hot LM317 Adjustable Voltage Power Supply Board Kit Electronics DIY Spare Parts<br /><br />Specification:<br />Power: 2W<br />Voltage: 220V<br />Plug: EU Plug<br />Output voltage: 1.25V - 12V regulated output continuously adjustable<br />PCB board size: L*W/7.3*6.8cm/2.87*2.67''<br />Shell Size: L*W*H/12*7*4.8cm/4.72*2.75*1.88''<br /><br />Features:<br />One way adjustable signal generator output. Convenient to provide the pulse signal<br />With a logical pen function.For convenient the logic level of test circuit<br />With one way buzzer.You can test the wires on and off Connect the wires to the power positive and signal input｣ｬ the wire on - the buzzer sound.You can test the low-frequency signalinput the signalthe signal input｣ｬif there is a signal｣ｬthe buzzer sound<br /><br />Note:This item is unassembled<br /><br />Package include:<br />1 x DIY LM317 Kit