I don't post all that often, but I can tell you that LEDs do work. I had my light made to my specs by someone in China. Yes, China.

They do not penetrate like HPS does, so I train my plants with LST. I have four foot high plants that are 12 days into flower and doing WONDERFUL! I let the plants grow without any training until the last few days before I went to 12/12. Even now I am still moving branches and helping the sites to the top. A few twisty ties here and there and I have a very nice and even canopy!

Now, my plants aren't scraggly either. VERY bushy. I do take care of them though. I pull out all of the leaves that fall off as I brush my hand underneath. Yesterday I cut off the two very bottom branches on the plants as they couldn't grow fast enough to get up to the light with the rest.

I didn't top and/or fim. I just tied the main stem down about eight inches from the top. Being careful the stem didn't break and my main colas are now dead even with the rest of the sites.

I'm also doing this all in soil. I had much faster and robust growth with hydro. Anyone doubting LED's should search Weezard. He posted a pic of his indoor plant (grown under LED) out-performing his outdoor plant.

Just because it's never been done before doesn't mean it can't be. It just take a little of this :weedpoke:.

If you have the patience and a little engineer's curiosity you will find LED will do what you want.