Ultraviolet Lamp FUV-4B


The fluorescence of gem is an important character to identify gem. Our UV Lamp features both UV short wave and long wave light and comes with a observation darkroom. The ultra violet Light Detects fluorescence in Diamonds, Rubies, Emeralds and Synthetics.

Features both UV short wave and long wave light
Suitable for large stones
Set up big eyepiece
Easy to view the color and optic characters of Gem under the ultraviolet light


UV lamp




Set up magnification eyepiece (Proprietary technology)          

Suitable for large stones, need observe in darker room                                   

Equipped with a global wide-voltage external power supply; output 12V/1A, cold cathode lamp tube, service life 1W hours;



Make sure to avoid the affect of ambient light when view the gem;

If the gem too big, you can take the LW or SW light off to view the gem, but remember to do it in a dark room;

Do not look direct to the UV light;

Do not put your hands in the box when the UV lamp is on;

5.Please turn off the electric power after the test.


Difference between FUV-4B, FUV-4 and FUV-4Z

Drawer observation darkroom /
Unique Diamond roller device / /


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Room 1404, Block 3/D, Tianan Cloud Park,Bantian Street,Longgang District,Shenzhen,Guangdong,China

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4th Floor, Building B, Kelixing Industrial Park, Xiwang Industrial Zone, Tiantangwei, Fenggang Town, Dongguan City

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