Features:

• use solid capacitor, 36u thick circuit board, high Q value large ratio inductor, with output LED indicator.
  
• The positive input IN +, negative input IN-!The positive output OUT +, negative output OUT-!(The main input and output cannot be reversed, and the reverse may burn off.)
  
• Performance：Adopting 150KHz internal oscillation frequency, belonging to the second generation switching voltage regulator, low power consumption and efficiency
  
• Steps: connect to power source, adjust the swirl button on the blue potentiometer and monitor voltage with multimeter to get the needed voltage.

Details:

• Output Current:3A(max)
• Output: DC 1.5V to 35V voltage continuously adjustable.
• Input: DC 3V to 40V(input voltage must be 1.5 V higher than the output voltage, no boost)
• The positive input IN +, negative input IN-!
• The positive output OUT +, negative output OUT-!
• Input and output can not be reversed, Pick up may burn off.

Instructions:

• Attention:
  1.The factory initial blue potentiometer, the resistance value needs to be connected to the input at the limit, and then rotates counterclockwise. After about 7-8 turns, the output voltage will change.
  2.Long-term work is recommended for currents up to 2.5A, plus heat sink (10W or more output)
  3.Because it is a step-down module, in order to ensure stable output, please keep a small 1.5V differential

• Welding Method:
  Solder, directly solder the power cord to the input (output) port. Or Welding pin,insert the pin through the lead or insert it into the hole plate.

Package includes:

• 1 x Step-Down Power Module