headshake
05-28-2009, 11:58 PM
i'm sure some of you have seen this. i'm sure some also haven't. i thought it was pretty cool.
anyhow, it's the spectrum of an HPS bulb.
good growing!
-shake
p.s. how do i put the picture actually in my post? thanks!
anyhow, it's the spectrum of an HPS bulb.
good growing!
-shake
p.s. how do i put the picture actually in my post? thanks!