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Torben said:What about using strings of LEDs in series? Say, 3 strings of 4 LEDs each and one string of 3 LEDs? Each string needs its own current limiting resistor.
Would something like the attached work?
Torben
ericgibbs said:Morning Torben,
I think the RED LED's the OP are using have a Vfwd of 2V, also it wants to use a +5Vsupply.
Best he could do is 2 LED's in series, times 8 sets.