Yellow bulbs don't repel insects, but it turns out there is truth to the claim that yellow bulbs attract fewer insects. Blue and ultraviolet light attracts the most insects.

The best LED light bulbs are eco-friendly, long-lasting, and come in all kinds of color temperatures. Talk about a bright idea.

Both UVA and UVB rays can damage your skin, just in different ways. One causes premature aging, the other is more prone to causing sunburn, DNA damage, and skin cancer.

Hospitals have long used ultraviolet light to zap viruses, but the devices were too expensive for businesses and schools. Spurred by the pandemic, an unlikely trio started R-Zero to develop a ...

The sun is the biggest source of blue light. Popular electronics are another source. Learn more about blue light and how it works.

The New Light Is Bad There’s something off about LED bulbs — which will soon be, thanks to a federal ban, the only kind you can buy.

Light pollution is a major contributor to insect decline, but smart LED bulbs can be a big help.

That current generates an invisible ultraviolet light that stimulates a fluorescent coating inside the tube, producing visible light.

UV sanitizers have been shown to work. They sterilize surfaces to eliminate 99.99% of bacteria, fungi, and viruses in hospitals or on personal items.

But anytime a bulb is used for light and not heat, these bulbs are a poor choice. They also have a short life-span — 1,000 hours of light as compared to, say, 10,000 for CFLs and 50,000 for LEDs.