Chris Welch is a reviewer specializing in personal audio and home theater. Since 2011, he has published nearly 6,000 articles, from breaking news and reviews to useful how-tos. Samsung’s The ...
Ultraviolet (UV) radiation is a type of light. Sunlight has UV rays, along with other kinds of rays. Some light bulbs give off UV rays, too. UV light bulbs are used in tanning beds and lamps, some ...
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