Alfa Mirage UV LED Black Lights
Easily see the fluorescence of diamonds and other stones
for color grading and artistic stone arrangement. Each
gives off a distinctive coloration under the UV light.
For example: diamonds glow blue.
Can be used on natural rubies, opal, amber, synthetic ruby
& sapphire. 375nm wavelength. Also determines the authenticity
of passports, credit cards and bills.
UV LED Pen Light (Single Bulb), 1-AAA battery not included.