This is a perfectly functional DC regulated power supply DIY kit, the output voltage range is 0-28V and the output current is 0.01-2A. You can conveniently adjust the output with the encoder; and it can be also used as constant-current source.

Features:

• LCD display the values, easy for reading.
  
• Output range: 0-28V voltage and 0.01-2A current.
  
• Adopts encoder to adjust the output, convenient for use.
  
• Memory function: output the preset voltage and current when powered on.
  
• With short-circuit protection and current-limiting protection.
  
• All are through hole components, easy to install.

Specifications:

• Display: LCD
  
• Input Voltage: AC 24V (or DC 30V, change by yourself)
  
• Output Voltage: 0-28V Adjustable
  
• Output Current: 0.01-2A Adjustable
  
• Stepping Value: Rotate the Encoder Fast: 0.5V, 0.05A; Rotate the Encoder Slowly: 0.1V, 0.01A
  
• PCB Board Size: 82 * 66mm; 80 * 55mm
  
• Package Size: 15 * 12 * 2.5cm / 5.9 * 4.7 * 0.98in