ELOS (Electro-Optical Synergy) is a technology that combines radiofrequency (RF) energy and light energy, and it doesn't operate at a single, specific wavelength.

Here's why:

* RF energy: RF energy operates in the radio frequency spectrum and is measured in MHz. It isn't associated with a specific wavelength.

* Light energy: ELOS devices often use broadband light sources like Intense Pulsed Light (IPL), which emit light across a range of wavelengths (typically from 400nm to 1200nm).

Therefore, it's incorrect to talk about the "main wavelength" of ELOS. Instead, it's important to understand that ELOS treatments use a combination of RF energy and broadband light energy to achieve their desired effects.

The specific wavelengths used within an ELOS device will vary depending on the manufacturer and the specific application.