Let there be . . . quantum dots

A new device may replace the good old light bulb. Based on LEDs the new device

gives off a warm, yellowish-white light that shines twice as bright and lasts 50 times longer than the standard 60 watt light bulb.. . .

LEDs produce twice as much light as a regular 60 watt bulb and burn for over 50,000 hours. The Department of Energy estimates LED lighting could reduce U.S. energy consumption for lighting by 29 percent by 2025. LEDs don't emit heat, so they're also more energy efficient. And they're much harder to break.

Imagine. No more burnt fingers trying to change bulbs. Of course, they don't even have to be bulbs.