It equals 300W! 500W!!! 1000W!!!!!!!!!!
Not that anyone would really measure. "Superbright" how about that?
Anyway... if you get it for $14 and it includes both fixture and bulb, it is probably a good find.
Usually the replacement bulbs (Lights of America) cost that much alone. I think they have the ballast build into the fixtures, so you can't use the bulbs without their fixture. That's what they say at the package at least.