Dell is looking to green up its act in the next two years. The PC manufacturer announced plans today to move its entire line of laptops to light-emitting diode backlights by 2010.

The company has already started making good on its promise--the E4200, E4300, E6400, E6400 ATG, E6500, and Dell Precision M2400 and M4400 are already shipping with LEDs as a standard feature. By the end of 2009, 80-percent of the company's new notebooks will ship with the technology.

"Why did we do this?" asked Dell's Michael Murphy. "We have been listening to our customers in order to extract customer value, and LED helps to move that agenda along."

According to Dell, a 15-inch LED consumes about 43-percent less power at maximum energy than previous technologies. The technology also requires no mercury to manufacture and allows for thinner displays than CCFL backlights.