Great resource and find IR, while I never slept with it under my pillow it was the first grow guide book I got. Back in the late sixties I don't remember any other indoor lights mentioned in it except the big T12 VHOs. That original version was much smaller then also.

I made a indoor bloom light using 8- 8' T12 VHO power twist vita-lites, used well over 1600watts lighting abt 2'x8'. Geez talk about inefficent.

Now wait a minute, does that make me an old fart? I feel younger already.:thumbsup: