murat.y.gokmen Posted November 26, 2008 Share Posted November 26, 2008 Hello, I would like to find out about the Luminescent Value of a 40 watt incandescent lightbulb and a 20 watt halogen bulb. Is this measured in Candela? Best, Murat Link to comment Share on other sites More sharing options...
musht Posted November 26, 2008 Share Posted November 26, 2008 Short answer, candela is a measure of intensity of directed light , it isn`t a measure of the total light output of a source. Total Luminous Flux, measure of all the light output by a source in all directions, is measured in Lumens. Longer answer, Light Measurment Handbook, free PDF download http://www.lib.uwaterloo.ca/discipline/opt...measurement.pdf Don Klipstein`s site http://members.misty.com/don/bulb1.html Link to comment Share on other sites More sharing options...
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