You could also try these pages.
Steve.
http://calc.entisoft.com/ESUnits/Units_A.HTM
Mark Warner <kwarner at accessgenesis.net> wrote in message
news:301019991510203796%kwarner at accessgenesis.net...
> Does anyone know the factor for converting Langleys (cal/cm2) to
> Watts/m2. We are working with meterological data and need to get the
> light data into a more understandable photosynthetic unit.
>> Mark
>> --
