DEVMO DP20V2A Constant Voltage Constant Current Programmable Control StepDown Supply Power Module

Weight: 59g/piece 
Dimension:79mm*42mm*26mm (L*W*H) 
Open size: 71mm*39mm 
Input positive: IN+ 
Input negative: IN- 
Output current: 0-2.00A 
Output power: Maximum 40W 
Output positive: OUT+ 
Output negative: OUT- 
Ripple frequency: About 330 KHz 
Input voltage range: 4.5-23V(23V is the limiting highest voltage. When you use it, make sure input voltage below 23V) 
Output voltage range: 0V-20.0V(In step down voltage mode, input voltage must be higher than 3V),the control button can fast draw up 2 sets data. 
Ripple peak to peak value: 50mv (typical value) 
3. Direction for use 
3.1:Display introduction: 
U-IN:input voltage U-SET:preset voltage 
U-OUT:output voltage I-SET: Preset current 
I-OUT:output current POWER:output power 
M-PRE:shortcut store LED:background brightness 
M1:shortcut store1 M2:shortcut store 2 
S-MD:setting the mode R-MD:normal operation 
ON/0FF: open/shut down the module output 
3.2key function instruction: 
SET:Function setting, function confirmation; 
m1 :Shortcut extract M1 stored data/Upturning to choose/shortcut store. 
m2:Shortcut extract M2 stored data/Page down to choose/shortcut store 
ON/OFF:open or close voltage output.