Quote:
Originally Posted by winkosmosis
You aren't going to get more light with less wattage, no way no how.
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Actually, incorrect. The efficiency of any given halogen varies with voltage. At a higher voltage, you get more lumens per Watt. You also get higher temperatures and much shorter life. That's why Sylvania Silverstars burn out faster than conventional halogens. I bet the EcoBright use the same principle, resulting in a bulb with shorter life, hotter filament temperature, lower power draw, and just as much light as a regular halogen.
from
35W GU10 Halogen light spot | OliNo
And yes, I know these bulbs don't actually step up the voltage fed to them. But a shorter filament accomplishes pretty much the same thing, in terms of longevity and efficiency.