FUV-4D Jewelry Grading UV Fluorescent Light Lamp Larger Viewer Fluorescent Box Ultraviolet Lamp for Gem Appraisal Tester

This UV Fluorescent Lamp is used to excite fluorescence, the fluorescence of gem is an important character to identify gem. FUV-4D provide long wave and shortwave light. Here are some applications: 1) Amber beeswax fluorescence identification: The fluorescence of amber beeswax generally shows any transition color among blue, green, blue to green, and even purple. Fluorescence is formed by the absorption and reflection of ultraviolet light by amber, regardless of the pigment. 2) Jewelry jade fluorescence reaction: 253.7nm purple light can be used for identification and testing of glued jade, dyed gems, bleached pearls and other jewelry. 3) Custom UV filters: UV black filter lens is used to filter out unwanted stray light, making the ultraviolet light pure and the fluorescence obvious.

Different Views of FUV-4D Gem UV Light Lamp

Structure of FUV-4D Gem UV Light Lamp

Size of FUV-4D Gem UV Light Lamp

FUV-4D Gem UV Light Lamp

Matters & Attentions:

1. Make sure to avoid the effect of ambient light when view the gem.

2. 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.

3. Don’t look direct to the UV light, pls turn off the electric power after the test.

4. One year quality warranty against detective after selling, and life-long maintenance.