The yellow Necsel laser reaches an output power of 1W at a wavelength of 577 nm. This was achieved using an award-winning patented technology that allows Necsel to create new wavelengths in reliable, industry proven free-space or fibre-coupled configurations.

Yellow lasers are mainly used in medicine and the life sciences. The light has a detoxifying and anti-depressive effect. For example, doctors have achieved success in the treatment of Lyme disease, multiple sclerosis, and depression through intravenous treatment with yellow laser light.