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That set-up may work great for a while, but will GREATLY reduce the lifespan of the LEDs.  There needs to be a current limiting resistor in series with the LED to keep it from burning itself up.


Out of curiosity though, what's the rating (forward voltage) of the LED?  I know a 12V fan will run at 9V and slightly under, but am curious what kind of voltage they're seeing due to the LED.


Thanks,



ATM

ShackMan


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