I depends on the type of florescent light/fixture being discussed here. T8 and T12 bulbs have options.....direct drive LED and direct replacement LED. Screw in bulbs and GU 24 type are easy.....plug and play. If changing an entire fixture to an LED illuminated fixture, the wiring is the same as incandescent/ florescent fixtures. Turn of power supply to fixture of course and if not sure of wiring procedure, consult with a professional for installation.
It's fine wire them up
As long as your wiring isn't from the 80s or early you should be fine
No they wire the same
Not sure better ask a professional
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