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Concerning radiant flux for typical household lightbulbs, does this mean that the wattage expressed on the bulb is integrated with respect to ALL wavelengths or just the ones in the visible range? —Preceding unsigned comment added by Xcelerate ( talk • contribs) 02:37, 12 February 2008 (UTC)
Surely the use of the word
flux in the case (radiant flux) is confusing and at odds with that which is accepted in other fields, namely that it is a measure of something per unit area, eg W/m²...?
Jdpipe (
talk) —Preceding
undated comment was added at
08:01, 20 October 2008 (UTC).
I wonder about the quantity "Radiant flux" as well as "Spectral power". According to IESNA LM-79-08 chapter 12.1 I would think the right expression for "W/nm" is "Spectral radiant flux". What source is used by using "Spectral power"? — Preceding unsigned comment added by 89.247.8.48 ( talk) 06:12, 14 December 2012 (UTC)
Power Spectral Density is the most popular. MaggieGaye ( talk) 00:12, 16 March 2018 (UTC)
![]() | This ![]() It is of interest to the following WikiProjects: | ||||||||||
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Concerning radiant flux for typical household lightbulbs, does this mean that the wattage expressed on the bulb is integrated with respect to ALL wavelengths or just the ones in the visible range? —Preceding unsigned comment added by Xcelerate ( talk • contribs) 02:37, 12 February 2008 (UTC)
Surely the use of the word
flux in the case (radiant flux) is confusing and at odds with that which is accepted in other fields, namely that it is a measure of something per unit area, eg W/m²...?
Jdpipe (
talk) —Preceding
undated comment was added at
08:01, 20 October 2008 (UTC).
I wonder about the quantity "Radiant flux" as well as "Spectral power". According to IESNA LM-79-08 chapter 12.1 I would think the right expression for "W/nm" is "Spectral radiant flux". What source is used by using "Spectral power"? — Preceding unsigned comment added by 89.247.8.48 ( talk) 06:12, 14 December 2012 (UTC)
Power Spectral Density is the most popular. MaggieGaye ( talk) 00:12, 16 March 2018 (UTC)