Lots of sites search wit h key word: orchid lighting. how about AOS
http://www.theorchidsociety.org/fluorescent.htm


"Steve" wrote in message
...
My light meter is reading 4,000 - 5,000 at plant level
and 2000 - 3000 at shelve level....
On a 12 hour a day timer

I have a mix of orchids on that shelve:
Oncidiums, Vandas, Zygo's, and few young cross...

Is this too much light?

Some leaves of some were turn a little yellow, so those got
moved to the ends of the shelves.

Is there any good web sites that maintains a light of orchids and
how much light is right for them?

Thank you
Steve