What type of light bulb gives off UV rays?

Halogen lamps emit significant levels of ultraviolet radiation and should be doped or covered with glass prior to use. Incandescent bulbs emit low-dose ultraviolet radiation. Fluorescent bulbs emit varying levels of ultraviolet radiation, and patients should strive to use bulbs with the lowest irradiance.

Do indoor lights give off UV?

A study examining light sources in the environment of a child with xeroderma pigmentosum suggested that indoor lights emit unexpected amounts of UV light as measured by a spectral radiometer. This finding illustrated that cumulative, chronic doses of indoor lighting may be of clinical significance.