Yes, but it's not a linear relationship. The gain in longevity is via thermal gains, which reduces the likelihood of component failure. It might be 3x, it might

Yes, but it's not a linear relationship. The gain in longevity is via thermal gains, which reduces the likelihood of component failure. It might be 3x, it might be 10x. You'd get the same (longevity) gains from taking a "regular" LED bulb and running it at lower power. You'd get less light output, though.