Experiment with your Mini Black Light key chain for a personal fluorescent show! "Black Light" is really ultra-violet light, which is naturally present as a component in sunlight. Ultra-violet wavelengths are very short with a very high frequency, and can be used to detect florescent material that would remain invisible under normal conditions. When you shine ultra-violet light on fluorescent material, it lights up with a beautiful bluish-green luminescence. Great for science experiments with using different lengths of light waves, or as an interesting addition to your next science fair project. Try using the black light with our special Invisible Writer (WINV-100) and leave secret messages that can only be revealed with your Mini Black Light! Recommended for children ages 6 and up.
- Do you have larger lights?
Yes, we sell larger black lights.
- Are the batteries/light bulbs replaceable?
The batteries are replaceable but the actual light is not. The battery information is CR2016 lithium.
Mrs. K. - September 26, 2012
This light is so tiny, but I guess that is to be expected, since it is a light for a keychain.
Kristie Lasiter - June 26, 2011
Great little light! Works very well. My boys love it!
great mini black light
Jamie - December 12, 2010
We gave these out at our son's Mad Scientist party. They boys used them on the atomic slime and the atomic worms. We also made lava lamps and added more atomic solution to make it glow. The boys loved using them.
Julia Fort Worth, TX - November 28, 2009
i carry this blacklight on my car keychain to show off my UV tattoo. it is so small but it works great. it hasn't broken and the light hasn't gone out, if you need a mini black light this is the best product to get.