I used to use the full spectrum tubes, since a friend represented the company for large commercial installations. One thing about being married to a former radio television engineer, lighting specialist, is that he now sets up my lighting. What I have now is LED track units for the general area and a LED desk light on a pull out and swivel arm for additional "extra" lighting. They cost more to start with but use almost no power (3-7 watts each). DH tells me that "full spectrum" is not what I wanted, rather "high color temperature". Whatever he calls it, it works really well and our power bill is low enough to make us smile.