First we had to understand why a household light bulb would produce UV light in the first place. As it turns out, all fluorescent light bulbs contain mercury vapor, which emits a lot of UV rays ...

This excited vapor emits invisible ultraviolet (UV) light, which is then absorbed by the bulb’s phosphor coating. The coating serves two purposes, both re-emitting the UV rays as visible light ...

which creates the light inside the bulb, was cracked, allowing dangerous UV rays to escape. They could not point out why the bulbs were cracking. The compact fluorescent industry says the bulbs ...

Well that may not be true if your home is lit with compact fluorescent light bulbs. A new study found these money-saving compact fluorescent lights, or CFLs, emit high levels of ultra violet ...

such as ultraviolet (UV)? A Canadian government study in 2009 found that CFL light bulbs do result in exposure to more UV radiation when used within a distance of one foot from the subject.

They are considered energy-saving and are meant to substitute the older incandescent light bulbs that existed prior to these; however, CFL’s emit more UV light than incandescent bulbs did. Fluorescent ...

But it seems some eco-friendly light bulbs may not be as good for us as we thought. According to Government scientists, many of the bulbs emit more than the guideline rate of harmful ultraviolet ...

The same light bulbs used in offices and public spaces can destroy coronaviruses and HIV, according to a new study from U of T Scarborough. Researchers killed both viruses using UV-LED lights ...

Amazon built robot that is designed to kill the novel coronavirus with ultraviolet light. The robot looks a little like a hotel luggage cart, with a tall metal frame attached to a rectangular ...