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I want to experiment with adding interior lights using an old Lenz 100 decoder and some LEDs (plus resistors and a capacitor for simulating motor draw) in the interior of a car or two. If I want to light up say 3 LEDs would I wire them in series or parallel? Would 3 or 4 LEDs on one function lead of the old decoder be too much, or is there no limit? This is a budget experiment with leftovers.  I know lighting strips exist for this purpose. Am I going to get acceptable results without using these kits?
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