@spam: The UVL bulbs are a similar concept.
I would recommend additional reflectors, as iirc the reflectors only cover about 40 or 50% of the lamp. They're more of a guide. fwiw, they do a good job but could use a guiding hand. If you're choosing them based solely on the reflectors, I would recommend a set of good reflectors and other bulbs. If you're getting them because they're the bulbs you want (UVLs are good, particularly the Super Actinic - that's their namesake bulb), then I wouldn't hesitate.