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6 Fun Facts: Black Light Bulbs

Posted by Whitney Grantling on September 22, 2015

Black Lights

black light bulb

6 interesting fun facts...You may or may not know!

  • What are black lights?

Black lights are not that different from your everyday light bulbs other than the color. The biggest difference between regular lights and black lights is that they emit most of their light waves outside of human sight of the ultraviolet part of the spectrum.

  • Why are they purple?

A black light bulb produces UVA light (as opposed to UVB light). These ultraviolet light frequencies are above violet on the spectrum and are invisible to the human eye. So, what you see glowing under a black light, whether on a Halloween fluorescent poster, invisible hand stamp or a glow in the dark T-shirt, are phosphors. For you and I: a phosphor is any substance that emits visible light when excited by some sort of radiation. A phosphor converts the energy in the UV radiation from a black light into visible light.

  • Do you know you can detect bed bugs with black lights?

You need these household items: Black Light, 1 Magnifying Glass & 1 Credit card

Shine the UV light onto the area of concern, the UV black light will draw the Beg bugs out. Next, use the magnifying glass  to spot the bed bugs. Then use the old credit card to squash them.

  • Black light Radiation

Did you know the UV inside of the bulb is a source of Radiation but want harm your eye’s or skin when used responsibly? When used accessibly it can destroy the vitamin A in your skin. So use UV Responsibly.

  • Black light effect on plant life.

Indoor garden sound cool? Well it can be with a black lights. The black light or UV light used in them acts as an artificial sunlight for the plants and allows it to still complete its photosynthesis. Unfortunately these it doesn’t give it enough minerals needed to reproduce. Most of the time linear fluorescent black light bulbs are used for effect.

  • What...Glowing Fish?

Ever seen your fish glow? With a black light you can. Clown fish, Neon Tetras, and Platinum Angel fish all glow better because of their white tent. Black lights should not be used to heat your fish tank. The Black light UV could be harmful to the fish. It’s least harmful in the 315 to 380nm range, but should not stay on the fish for too long. It’s only safe to use in small doses. Such as one or two hours a day.

Halloween Fun Fact: Did you know that black light are one of the more popular purchases for decorating bowling alleys, haunted houses and Halloween parties? If you need black lights...we have them. SHOP NOW!

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