LED Ultraviolet Flashlight
These small ultraviolet flashlights are very convenient for identifying rocks, hunting for scorpions, or just trying to find where your dog or cat peed in the house.
Longwave UV (UVA)
Wavelength: 315–400nm
Photon energy: 3.1–3.94 eV
Uses 3 AAA batteries (not included).
Learn more about the science of ultraviolet light, and many more interesting colors, in our book The Universe in 100 Colors.
This item was previously featured in our Matter Science Box
Learn more about the science behind unusual colors in our book The Universe in 100 Colors.
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