Question Custom Power Button

Dec 1, 2019
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Hello everybody,

im planning on installing a custom Power button. I know that I need to get a momentary switch for that but I actually couldn't figure out what voltage I need. This is the button im planning on buying:

https://www.ebay.de/itm/Waterproof-12mm-Metal-Round-Dash-LED-Lamp-Power-Push-4-Pin-Button-Switch/283144886922?hash=item41ecc01a8a:m:m0NxnSV2fLNnWLemR4b1GXw

So as you can see on the site it gives me a choice between 3,6,12 and 24 Volts.
I have heard that it runs on 3.3 Volts but im really not sure about that and if the Volts are only important for the LED built into the switch or the switch itself.
I hope you guys can lend me a hand on this one :)

cheers
 
LED's are very sensitive to the amount of voltage and current supplied. Motherboards luckily have current limiting resistors built in, so all you need to worry about is voltage.

I just measured the voltage of the power LED on my motherboard and it was 4.9v (round to 5)

I would go with the 6v momentary switch, which just may be a little dim.
 
Reactions: momo243
Dec 1, 2019
2
0
10
0
Oh thank you so much for measuring!
Because I couldnt find any information on that in my motherboards manual and I currently dont have a multimeter on my hands.
 

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