[Solved] Adding LEDs directly to case fan's wires.

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BuBu Shofronea

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Sep 10, 2014
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I'm not so good at this stuff but i was wondering i would add some 12v LEDs ( i choosed 12v becasue the fan is also 12v... ) directly to the wires of the fan, like + to + and - to -, will they work - i mean will they not burn ?

I want to add them to a 4-pin PWM fan.

Btw, will they make the fan spin slower ? I'd like to add 4 of them...
 
Solution
Yes buying "12v" leds will not need any resistors because they should have them inline. You should also have no problems seeing them since most of the time they are under shrink.

5 volt ones would need resistors, but if you can get 12 why use the other ones. If you get bare leds with no resistor then a resistor is needed for sure. Almost no way around it, if you do not have low enough voltage and low current you can get by without one. This is why watch battery flashlights do not tend to use a resistor(they lack the current and voltage to need one).

So with "12v" leds you do something like this.
wjxncz.jpg


It does not matter where the led leads meet, they all go back to 12V and ground. If you used a molex...