LED lights are far more efficient than standard light bulbs, using a half of the energy and burning five times longer than their rudimentary cousins. It’s a wonder, then, that we don’t see them used more. Ann Arbor, Michigan is the first city in America to replace all its streetlights with fancy, fancy LED lights, saving money and energy in the process.By replacing every streetlight in their fair city with 1,000 LEDs, the Ann Arbor town fathers are putting their burg on the forefront of energy responsibility. It’s only a matter of time before other cities follow suit and we’re constantly lit by the efficient glow of LEDs. Bring it on, I say.