I screwed up about 2-3 years ago and bought a bunch of those dumb spiral light bulbs back when they were $6 a piece. They barely produce any light so it's almost as inefficient as one of those 'low flow" toilets that you end up needing to flush three times. They malfunction, start to hum and hiss just like the rest of the florescent lamps and really do not last as long as the old faithful cheap bulbs. The only reason I can see to have them is if you are operating with some alternative energy source where lack of wattage is an issue.
I like it when I get I get those "thumbs down" thingies.
That tells me some asshole was BUTTHURT by my post.