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25.02.2010
LED CREE Xlamp MPL EasyWhite
LED CREE Xlamp MPL EasyWhite
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Web-calculator

At this page of our site you can calculate the luminous flux of LED, you only need to know the candlepower. Better to say, you can make a conversion from candelas to lumen, and and vice versa. You need just to enter the available characteristics in millilumen or in millicandelas and click "Calculate".

The converting is made by formula:
F=I*2π(1-cos(a/2)), where
F - the luminous flux
I - the candlepower
a - the flat viewing angle

Warning! The results of the converting are approximate and can be used only for rough comparison of the characteristics.
The correct data can be gotten only using the photometric cameras.
Candelas to lumen Lumen to candelas
Enter the candlepower, mcd Enter the 50%-power
angle LED
Enter the luminous flux, mlm Enter the 50%-power
angle LED
Total the luminous flux, mlm: Total the candlepower, mcd:
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