i got a bunch of this type of bulbs layin around they are all really old i been considering using them but fixtures for them are like $22 they are GE bulbs and are 48" long and an inch and a 1/2 wide the ink on them is smudged off but they say f40/??/?? wide spectrum grow and show anybody elese familiar with these bulbs is it worth grabing 1 of these fixtures n usin them over the 6 CFL combo im workin with now? any idea what kinda watts/lumens these things run? i dont see this type of bulb in this size anywhere theyre all thinner none of em are in boxes i stumbled across them when i was lookin 4 somethin elese 1 day n been curious about using them ever since