LED are more more efficient.
HPS waste ~80% of its emission on wave lengths that do not promote photosynthesis.
Making a HPS ~ 20% efficient
HPS were invented in....
Hahaha,,, Just went through all that to select one.
And what
Jdizzle22 says I think has merrit also.
Somewhere in the middle is what I figured.
My little closet running a straight 250 HPS (50 usable watts?) is being replaced(? - tested) with a 180w, 6 band with 2 w diodes.
Figured 180 is probably 120 in use. Since the usable being higher, I
expect improvement, though maybe not noticable.
Puzzle for me was, Combination 60 & 120 deg. angle? What's with that?
Should I adjust for the 60 deg? How do you see the 60 deg lights, different color or something?
Are the 60s going to cover my 2' X2 1/2' at a working heigth?
Went ahead with it (hopefully in the mails) but I do have doubts.
Anything for an experiment though, I've gotta know! (sorry)
I'm pretty certain I'm going to want to cover my flat white walls with mylar though.