What is the difference of the LED lamp process and the method with Laser?

Bleaching agents (whitening gel) is in both methods the same. The difference of a method with the other located in the activation of the bleaching agent, which in one case is a LED light and the other laser-
What has been observed is that the process of bleaching laser creates dries enamel, thus giving more shiny, in contrast to the method of bleaching with LED lamp
Furthermore, the method of LED lamp color correction is accomplished by a specially designed 5000 Kelvin light which is equivalent to the natural sunlight at noon