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How many GGG LEDs can I wire together when connected to the PC's 5V power?
Havok:
Depending on the psu, more than you will need...
Neverending Project:
How many do you want to use? I have read some info here and there that suggests you don't want to wire too many in parallel, they don't share current very well. What some people have done is make legs of a few in series, and then wire these legs in parallel - so you have a combination of parallel and series.
But in your case, you wouldn't be able to do this unless you used the 12V supply, and hence could put 3 in series (with a 120Ohm resistor). Then if you put 10 of these legs in parallel, you would have 30 LEDs.
In fact I just checked using the calculator link provided above, and if you enter 12V as your source, 3.3V and 20mA as the LED voltage and current, it will actually build you a circuit with 10 legs of 3 LEDs each, complete with resistor values and how to hook them up.
unclet:
I thought it would be a simple answer. I know nothing about electricity so I have no idea how many volts or amps or mA stuff means. Lets assume the power supply is 200Watt. I would like to connect 8 LED lights in parallel only.
Do you think this would work? If not, then I guess I just will think of something else.
:dunno
Neverending Project:
--- Quote from: unclet on January 31, 2008, 06:57:01 pm ---I thought it would be a simple answer. I know nothing about electricity so I have no idea how many volts or amps or mA stuff means. Lets assume the power supply is 200Watt. I would like to connect 8 LED lights in parallel only.
Do you think this would work? If not, then I guess I just will think of something else.
:dunno
--- End quote ---
Yes. Hook them up like the attached picture.
unclet:
Excellent ..... thanks for the effort. :applaud: :applaud:
It seems I can simply wire the LEDs in parallel like your diagram .... that is great.
I am assuming you know Randy's resistors are 100 ohms? I mean I have no idea, but I will take your word for it.
Thanks again. :cheers:
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