Melanin protects the body by absorbing ultraviolet radiation. DSSCs degrade when exposed to ultraviolet radiation. Photography of the fluorescence produced by ultraviolet illumination uses visible wavelengths of light. Protective eyewear is beneficial to those exposed to ultraviolet radiation. Clothing also provides protection from ultraviolet radiation. The breakdown of ozone in the stratosphere results in reduced absorption of ultraviolet radiation. Biodegradation increased with time exposed to ultraviolet radiation. Humans also lack color receptor adaptations for ultraviolet rays. Production of ozone is one of the potential dangers of ultraviolet germicidal irradiation. The function is to protect against damage from the ultraviolet radiation of sunlight. Optics usually describes the behaviour of visible, ultraviolet, and infrared light. Plants grown under HPS lights tend to elongate from the lack of blue/ultraviolet radiation. Welders use gloves too for protection against electrical shocks, extreme heat, ultraviolet and infrared. UV ranges listed at Ultraviolet astronomy#Ultraviolet space telescopes. ETFE resins are resistant to ultraviolet light.