LM317 Adjustable Voltage Regulator Step-down Power Supply Module with LED Meter

New arrival, promotion!!!
Input: DC:0-30v AC:0-20V
Output: DC 1.25-28V
Output current : 2A(Max)
Size: 66mmx50mm

LM317 adjustable DC power supply board uses the original LM317 regulator
1 using the lotus-shaped heat sink cooling effect better
2 the use of double adjustment potentiometer
3 AC / DC can be enter, input voltage range:
  DC: DC 3-30V
  AC: AC 3-20V
4 can be accessed below 2A load DC output 1.25V-28V continuously adjustable, using a wide voltage range
5 using special high-frequency power capacitors green gold, more stable performance
6 Ban Ban village with a blue line of high-end dual-panel
7 our new digital voltage display function to increase the output voltage at a glance, very suitable for experimental use

Pls notice :
1.this module is Step-down, so the input must be 3v more than the output
2.Because the voltage of the display is 3.3v, the display only work when output higher than 3.3v

Package includes:
1 x  LM317 Voltage Regulator Module