In case this is all news to you, let us give you a little background. DLPs are based off of three major things: a set of tiny, tiny mirrors (called the DMD), a color wheel, and a lamp. These new LED based sets replace the last two items and simplify the process. Instead of sending light through the color wheel and then off the tiny mirrors to achieve all the colors, the whole process is based off of red, green, and blue LEDs. Therefore you get more consistent colors, no rainbow effect and also, a lot longer life then light bulb based models.