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Conversion units for light

Thu Aug 21 17:30:09 EST 1997

Regarding the question about interconversion of light units from lux to micromo
l photons m-2s-1 (400-700 nm), a handy rule-of-thumb I have memorized is:

   100,000 lux = 10,000 ft.c. = 2,000 micromol m-2s-1 =  400 Wm-2

 This is of course a very rough interconversion, and is based on full sun value
s (at least in Florida).

 George Bowes
 Department of Botany
 University of Florida, Gainesville  FL 32611
 Tel: (352) 392-1891   Fax: (352) 392-3993

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