You might be interested in a very good article from our friends at Electronic Design.

“In an era when we think of an ordinary tungsten light bulb rating in terms of watts, a term that is on its way out, it is time to rethink our concept of light in a different context. Wattage is simply what the bulb consumes in energy to generate on average about 650 to 850 lumens, the real measure of light that’s listed on every bulb package. Newer light bulbs like LEDs can easily produce this kind of output yet dissipate use much less energy and last much longer.”…

Click here to read the whole article. It is worth your time.