12-18-2007, 11:42 AM
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Unrulyevil, I guess all of the years that I spent studying and woking in the design field taught me nothing. Watts is one of the detemining factors in power consumption, Ohms Law (Watts/Volts=Amps). Watts also can be used in determining heat, ie. 1500w heaters. Heat is energy. Watts/heat should not be a measure of intensity.
Lumens may be interpretted in a couple of different ways. Foot candles may be a better term that would help the aquarist to select lighting, although this terms is usually used in determining the amount of light at a certain working plane.
Therefore, watts have nothing to do with the bulbs intensity. Watts just tells you how much power it takes to achieve that brightness. We, as aquarists, have become misinformed by those who are not informed enough to make statements like "X# of Watts per gallon". It is time we educate ourselves on the reality of what is true, on what is really the determining factor that makes things work right.