Light intensity conversion

Questions and answers on how to convert things from one unit or system to another


Light intensity conversion

Postby §wishy » Tue Feb 27, 2007 7:37 am

How to:
Convert millicandela to Watts

Problem: Old road trailer with side lights festoon lights @ 10 watt power each
convert to LED lights

15,000 mcd = one white LED
Howmany LED to be equivelent to 10 watt power

What we have found:
The unit of measure commonly used to describe LED intensity is the millicandela (mcd), 1000 millicandela equals 1 candela. Candelas measures how much light is produced as measured at the light source.
The candela is the Luminous Intensity, in a given direction, of a source of monochromatic radiation of frequency 540 × 1012 hertz and that has a radiant intensity in that direction of 1/683 watt per steradian.

Thanx in Advance

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