International Power Adapters By OLIREXD

• Function: DC-DC Buck Converter 3.0-40V input voltage regulated to adjustable 1.5-35V output voltage. (input voltage must be 1.5V higher than the output voltage, no boost).
• High Precision: The buck converter consists of 36u thickened circuit boards, high-Q inductance with output LED indicator, and superior solid-state capacitors that can effectively filter out high frequency noise. Suitable for various electronic projects.
• Easy to DIY: Connect to power source, using a mini screwdriver to increase or decrease output voltage by adjusting the screw on the blue potentiometer and monitor voltage with multimeter to get the needed voltage, clockwise to step up voltage and counterclockwise to step down voltage. (Factory default stays a high voltage, you need to contradict about 15-20 circles before the voltage starts ramping down).
• Mini Size: 43*21*14mm(L*W*G).
• Pack: You will get 10pcs buck converter (with potentiometer).