this may help too,specific instructions on what temperature air quality and humidity at what time most edibles need to grow and fruit.
www.sacredshrooms.org/forums/showflat.ph.../an/0/page/0#2103080
and here is what lux are in real life.
Direct sunlight
100,000 - 130,000 lux
Full daylight, indirect sunlight
10,000 - 20,000 lux
Overcast day
1,000 lux
Indoor office
200 - 400 lux
Very dark day
100 lux
Twilight
10 lux
Deep twilight
1 lux
Full moon
0.1 lux
Quarter moon
0.01 lux
Moonless clear night sky
0.001 lux
Moonless overcast night sky
0.0001 lux
and here is a page to figure out what light sources you need to make the lux you need...(I think) I haven't had time to look around it but it looks like what a good starting point.Google "lux calculator" and sift thru the results.....gotta run
www.spotlight.it/toolsf_eng.htm
I'm going to need to know what light makes what lux for my own grows,I'll post the results when I find out.
But from what I've seen Oysters need a LOT of light to develop properly so I may be using 500 watt halogens but from what distance I need to figure out.I have access to good light meters and I'll figure the proper distances.