Wow I went to sleep and the otherside of the pond woke up and took to the thread with sledge hammers and thus begins the psychological kungfu in the world of grow lighting.
I can recall a time in the 80's when some people I knew got me into HPS and HID from Sylvania, everyone said "Why wouldn't you just grow outside it's to expensive, not a good return, etc..."
They'd never heard of flood and drain back then, and let me tell you they all came over to the darkside of HID and HPS over the next 10 years.... seems like another lifetime ago now...
Seems like a lot of doubters out there regarding the cob diy path, well I'm traveling with others on this and I've got a feeling all those doubters will be like the anti-HID/HPS people way way back in the olden days, and some may even have to eat humble pie.
To all that advance our knowledge of lighting and building a big thank you.
Mars hydro lights week 8 of 12
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