2A 2V-24V to 3V 5V 6V 9V 12V 19V DC-DC Boost Step Up Voltage Converter Power Supply Module XH-M415
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it is so small for the price, and i don't think it'll stay for long.
prima product en levering.
I just got it! Looks good! When testing I do review!
ok! it works!
Its a voltage converter thingy.