I am doing a simple circuit with a 12V power supply to power a 12V LED strip. I'd like to be able to switch ON/OFF the strip with a relay connected to my Arduino. I'd like to know if I can power my Arduino directly from the VIN pin using 12V source. I saw that the Arduino can support up to 12V.

Thank you in advance for the help.

  • 1
    Product page says? Nov 15, 2016 at 14:42
  • 2
    I saw that the arduino can support up to 12V - isn't this your answer?
    – Mukira
    Nov 15, 2016 at 14:43
  • Not from Vin pin probably. But from the power-in jack.
    – Eugene Sh.
    Nov 15, 2016 at 14:47
  • this question about stripleds has been asked too many times, try reading some answers to learn more about how they work , and power sensitivity from 12 to 14.2V.. see related on right side Nov 15, 2016 at 14:59
  • Possible duplicate of Controlling 7W 12-14V power LED with Arduino
    – laptop2d
    Nov 15, 2016 at 17:37

2 Answers 2


As you have noted, many Arduino (and clones) are rated for supply voltage up to 12V. But note that if you use 12V power, the on-board regulator will get rather hot. Providing decent ventilation and maybe even extra heat sink would be a good idea.


The answer is yes, you can. Since there are no information about which Arduino you are using, Lets assume that you use Arduino uno. Based on the official webpage documentation, the recomended voltage input is ranging from 7 - 12 V. Therefore it is possible.

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