GSD offers 308nm excimer UV-light system, is gold standard for Vitiligo and Psoriasis. The light source as illumination is generated from a molecule consisting of Xe atom and Chlorin atom under the effect of electric field, which can induce T cells apoptosis and improve pigment synthesis. GSD 308nm Excimer UV-light system has maximum energy density 6000mj/cm2 and various spotlight lampshade with maximum light spot 25.62cm2, it can reach a rapid and high effective treatment for patients.

What is 308nm excimer UV-light? 
The light source of excimer light is a molecule consist of Xe atom and Chlorin atom under the effect of electric field, as chlorin atom can accept a electron from Xe atom, the two atoms are activated and on an unstable combination state, thus producing monochromatic excimer light which proved to be effective for skin disease like vitiligo and psoriasis.