http://www.onlineconversion.com/illuminance.htm

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Ray Barkalow - First Rays Orchids - www.firstrays.com
Plants, Supplies, Books, Artwork, and Lots of Free Info!

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"dusty" wrote in message s.com...
"PhalGuy" wrote in
s.com:

Thank you Matthiew!
Do you know hom many feet-candle you get with 4 tubes like that?
Does the tube generates lots of heat?

Thanks

Claude

"Matthew Donadio" wrote in message
...
| "PhalGuy" wrote in message
| s.com...
| Here is the question: Does it matter the order I`m going to install
| the tubes!
|
| I have my tubes installed CW-WW-CW-WW, and I also try to shuffle the
plants
| around when I water for a little divertisy.
|
| --Matt
|
|




The quesion on foot candles is difficult to answer because foot candles is
a measurment of light source and distance to the object recieving the light
1 foot candle is how much light reachs a wall from a candle one foot away.
I tried a search to find a formula to convert light output (lumins) to foot
candles but all I got was sights on Marijuana Cultivation. Very strange
indeed.