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LED lighting in an old system

Last response: in Systems
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June 13, 2012 6:04:28 PM

USB is 5 volts, and that is too much electricity to power custom stuff that I made. I want the electricity to go to the fan first. Should I hook up the fan to the battery and then the LEDs to the fan?

More about : led lighting system

a b B Homebuilt system
June 13, 2012 6:25:21 PM

You could build a voltage divider and draw from the PSU.
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June 13, 2012 7:19:41 PM

The same power from the power supply is also 5 volts, so I'm stuck. I half got it working right now, I just want to do away with the wires
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a b B Homebuilt system
June 13, 2012 7:49:33 PM

en.wikipedia.org/wiki/Voltage_divider
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June 13, 2012 8:37:17 PM

Thanks, I didn't have any resistors so I used a fan. The fan reduces the voltage to just about what I wanted. That was my initial plan, and my original question was about putting the resistor in series or parallel.
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a b B Homebuilt system
June 14, 2012 3:50:11 AM

Cool, hope it works now.
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June 14, 2012 5:11:11 PM

Yup, now I need to buy more LEDs.
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!