"Eisboch" wrote in message
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wrote in message
ups.com...
First version, otherwise why use 6 resistors instead of one single
lower ohmage one of higher power.


I was trying to roughly calculate the power requirements. You said 600
ohm resistors, correct? The voltage drop on the LED will be minimal when
forward biased or "on", so each branch must be about .02 amps, times six
equals .12 amps, so the power must be about 12v times .12 or about 1.4
watts. Probably a bit more when you factor in the LED drop, whatever it
is. Significantly less than a regular light bulb!

Eisboch


In fact, the more I think about it, somethings wrong here. I must have
misunderstood your hookup. Do you plan to use six, 600 ohm resistors in
parallel for *each* of the LED segments? If so, the power consumed will go
up big time. Or is it a single 600 ohm resistor per LED segment. If so,
one watt resistors won't hack it.

Eisboch