I have been interested in the same thing. I can only assume that any UV source will help improve the grow, but I always wondered if anyone had any real-world results using them.
I've been using uvb bulbs for awhile ....I say their a waste of money.Too much money and not enough uv for our purposes.All cfl bulbs put off a small amount of uv light anyway,I don't think uv light from a cf bulb would be strong enough for any significant increases in trichome production.
At least I haven't seen any difference at all.
That blacklight would be worthless it emits uv-a light ........good for checking if theres piss stains on a matress,not for growing weed
Your looking for a uvb bulb.They have them at Wal-Mart and most pet stores.It's like $30 bucks for just one 150w uvb!
These are the types of uvb bulbs your looking for.peace