Fluorescents, especially tubes, which don't put out all that much light at any given point along their length, won't cut it for citrus, though they might be enough for relatively short herb plants (12"-18"). Light intensity drops off dramatically with distance (it's inversely proportional to the square of the distance from the source), so even if one puts the tubes within an inch of two of the topmost leaves of a "tree" that's as short as even a few feet tall, most of the plant still won't get enough light.
The best thing for citrus is really HID lighting, but that's both expensive to buy and expensive to operate, and generates a lot of heat (which isn't necessarily a bad thing during the winter, but has to be taken into consideration). I used to use a 400W HID for orchids, but haven't put it back up since I moved a few years ago, and haven't paid much attention to the rapid development of higher-powered LEDs over the past few years. But from what I have seen, that's probably the way to go, particularly for something less critical like just overwintering plants that aren't actively growing. Prices for basic fixtures are really pretty low, and their light output is at least an order of magnitude higher per Watt than the most efficient incandescent lamps. (And more than even high efficiency fluorescents.) Something along the lines of a 40W-50W LED (or maybe a couple of 30Wers, positioned lower, and angled toward the plant from 2 sides) should give a reasonably large plant a decent amount of supplemental light, especially if it is supplemental to reasonably good natural light like from an east- or south-facing window. Shorter herb plants are easier, at least to maintain, but they should still get as close to "full sun" as possible, so basically, the more light, the better.
I only glanced briefly at the Wirecutter article (because their and their kin's articles of this sort mostly annoy the hell out of me) but (a) it seems to be about starting seedlings indoors and (b) this is really one area in particular where "talking to experts" and reading specs is no substitute for advice from people who've been doing heavy-duty "indoor gardening" with lights over a long period. Before relying even mainly on it alone, I'd spend some time looking through what are mostly older threads on GardenWeb (or whatever they're calling it these days) and, unless you're afraid of what your ISP will say, the lighting sections of MJ growing forums. You can ignore all the stuff you'll see there about photoperiods and differences between vegetative growth and flowering phases, but as far as light intensity is concerned, citrus and herbs have far more in common with Cannabis than they do with young seedlings being grown only big enough to set out in a garden as soon as the ground is warm enough...