For me, book theory is one thing and reality of a device quite another. Like with a battery where an electrochemical reaction tries to be "simplified" with zero success, diddling with lots of inexperience can lead to magic smoke with grinning images of Benjamin Franklin in it.
As far as fitting a five foot four tube fluorescent fixture in a three and a half foot trunk, well you get the idea. ADUANA would consider any part of a fixture or lamp as being made in the Orient, and assess a 400% tax on it. Ultra High Output fluorescent stuff is not made in North America, is it?