For the laser show system there is an important part :laser module.Some people also called it “laser diode”.But they are different.look this diode picture:

For our laser we usually use the wavelength is red color 638nm, green color 520nm, blue color 445nm.They have different power.

Each color can be a sigle laser module : red lase module, green laser module, blue laser module.

Consider the laser case size ,weight,combined l, more convenient for customers , desigh the 3 in 1 laser module：RGB

How the laser module work？