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I think that usage is OK. It's like saying "40W of light". In this case, it tells us there's some RF energy and also that it's RF energy of the "50 kW" type.
by Nutmog 11y ago
I think that usage is OK. It's like saying "40W of light". In this case, it tells us there's some RF energy and also that it's RF energy of the "50 kW" type.
- estomagordo 11y agoI think "40 W of light" is a great example of why this imprecise, or quite frankly, incorrect usage is troublesome. 40 W of old timey lightbulb light is useful if you want to sit close and read a book in the evening, whereas 40 W of a modern LED bulb light is a great thing to have if you want to fend of a pack of marauding undead.
- klodolph 11y agoIt's not actually as imprecise as it sounds. A 40W light bulb might produce 1W of light and 39W of heat. Watt is the normal unit of measure for radiant flux, and the lumen is nothing more than "luminous flux" which is radiant flux weighted according to its spectrum.
- zurn 11y ago"40 W of light" in physics terms is quite unambiguous, it means 40 W in radiant flux.
- estomagordo 11y agoI'm aware that it makes sense to talk about light flux in terms of Watts, I was more getting at it not being obvious what the person using that terminology actually means.
- gpvos 11y agoWhich is certainly not what the average person on the street means when they use that term.
- 50CNT 11y agoThis may be slightly off topic, but look at this cool LED[0]! It's a 150W 18000lumen LED, which is the raddest thing ever. [0][http://www.cree.com/LED-Components-and-Modules/Products/XLamp/Arrays-NonDirectional/XLamp-CXA3590 http://www.cree.com/LED-Components-and-Modules/Products/XLam...]