Intense Pulsed Light (IPL) utilized optical filters to generate certain wavelengths of light for treatment of specific targets such as hair, veins, pigmented lesions, and collagen.
Each hand piece has a different filter in it to generate a different band of wavelengths.
Lasers cannot change wavelengths and you usually need a different laser for a different target. That is the benefit of IPL devices. By just changing the optical filter (hand piece), you now have the equivalent of a whole new laser. The Clareon can do the work of 5 different lasers!