Jay- Which type are you using? How much area does your's cover and at what distance? I just couldn't get the fc's right. No idea what to measure LED's with. Jeez maybe I should try them again.
I feel the same way about halogens. They were in my place so I decided to give them a 30 day trial. Some of my plants needed the extra heat up here in Chicago. I've had a "non-blooming variety"
of tenuilfolia. 5 years that dang plant grew to monster size, produced nothing. The halogens did the trick. Its blooming its head off. They seem to run towards the red spectrum so when a plant is finished blooming I rotate it to 5100k cfl's.
Halogens run
very warm and extremely bright.(near 5000 fc's at a distance of 4') Brisk air movement is critical