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How to add led to mk3s+ power supply?
I have an LED light that normally runs off of four AAA batteries with a switch attached. However, they do not last long and I would like them to be powered by the printers power supply if possible. Is this something that I can do safely? W
here can I connect the wires on the buddy board?
Posted : 04/12/2025 1:48 am
RE: How to add led to mk3s+ power supply?
Wish I had seen this earlier. You would need a voltage regulator or current regulator to drive the LED's. 4AAA batteries are about 6VDC. Power supply is 24 V. You need to lower that voltage. A cheap switching regulator wouid do the job.
With a current regulator, you look at the LED current draw and set it to what the LED's need. If they are in series, then about 30mA would do.
Posted : 21/02/2026 9:06 am