if you're doing the bare bulbs checkerboard stylee do you go all 600s?
I like the reflectors taped to the wall, appeals to my sense of ghetto-ness..
those troughs were in rows. so light row, plant row, light, plant light.
the reflectors on the walls kills it, and is definitely for safety to boot. i prefer 600. nothing beats em the way i use em.
med-man