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Foot Candles

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Judith

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I read that orchids need a given range of light in footcandles. Each species needing a different amount. I have never read just what this means. Please tell me which of the following is the correct answer, using Phal as an example: 800-1200 fc.

A. The amount of light that the plant receives at any given moment when measured with a light meter reading in fc.

B. The total amount of footcandles received by that same plant for the whole day.

I am going to post this to other forums.
 
E

Ernie

Guest
Judith,

Good question. The answer is A. In your example, Phals should be getting 800-1200 fc at *any given moment* during daylight hours.

-Ernie
 

bwester

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footcandles = one of those STUPID standard measurement units that only the US and 2 others use.
 

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