UV Lighting Wands Are made to Eliminate Infection. But Will They Go A Long Way? Uv light-weight, or UV, that heads to the planet courtesy of sunlight along with theAndnbspelectromagnetic spectrum, is available in three primary flavors: Ultraviolet-A can vary from 315 to 400 nanometers, UV-B from 280 to 315 nanometers and Ultra Published 3 Years Ago by y9zufiv311