Ultraviolet Lamps | UV Light for Gem Testing

Application

Used to differentiate gemstones based on their fluorescence response. Rubies typically emit a red fluorescence, while red garnets remain unreactive under UV light.
Helps in identifying natural and synthetic gemstones, as synthetic rubies often exhibit a stronger fluorescence compared to their natural counterparts.
Evaluates fluorescence intensity in diamonds, which can provide insights into their composition and quality.
Useful for examining whether jade, amber and other gems have been filled, oiled, dyed.

FUV-4 UV Lamp Viewing Cabinet

Inquiry

Dimensions	170(L)×170(W)×140(H)mm
Weight	approx. 2.0kg

Features

Comes with drawer observation darkroom
365nm and 253.7nm ultraviolet light for standard gemstone fluorescence analysis
Cold cathode tube with a lifespan of 10,000 hours
External universal power adapter, output: 12V/1A
Equipped with a magnifying eyepiece for detailed examination
Creates a controlled dark environment for precise fluorescence observation while ensuring easy placement and removal of gemstones. Improves visibility of weak fluorescence and distribution patterns.
UV lamp accessory: optional ring tray available as request

Designed for mounted gemstones. Facilitates the observation of fluorescence properties, suitable for gemstone rings of various sizes.
Size: 5×4.5×2 cm
Weight: 30g

FUV-4Z UV Lamp Viewing Cabinet (Diamond Grading)

Inquiry

Dimensions	170(L)×170(W)×140(H)mm
Weight	approx. 2.2kg

Features

Comes with drawer observation darkroom and unique diamond roller device
365nm and 253.7nm ultraviolet light for standard gemstone fluorescence analysis
Cold cathode tube with a lifespan of 10,000 hours
External universal power adapter, output: 12V/1A
Equipped with a magnifying eyepiece for detailed examination
Allows selection between table and pavilion observation modes. The tested diamond sample can be easily moved outside the dark chamber for comparison and grading.
Creates a controlled dark environment for precise fluorescence observation while ensuring easy placement and removal of gemstones. Improves visibility of weak fluorescence and distribution patterns.
UV lamp accessory: optional ring tray available as request

Designed for mounted gemstones. Facilitates the observation of fluorescence properties, suitable for gemstone rings of various sizes.
Size: 5×4.5×2 cm
Weight: 30g

FUV-4B Portable UV Analyzing Lamp

Inquiry

Dimensions	170(L)×6.5(W)×9.0(H)mm
Weight	approx. 0.8kg

Features

Suitable for large stones
365nm and 253.7nm ultraviolet light for standard gemstone fluorescence analysis
Cold cathode tube with a lifespan of 10,000 hours
External universal power adapter, output: 12V/1A
Portable design, easy to transport and use, suitable for examining larger samples in a darkroom environment.

FUV-100, FUV-100A, FUV-200A Portable UV Fluorescent Lamp

Portable UV fluorescent lamps feature a cylindrical design with an integrated dark field, ensuring excellent light shielding for more accurate observation and identification. Despite its compact size, they offer a large testing space, suitable for examining bracelets, pendants, and other jewelry or gemstone pieces. The plug-in version can be powered by a portable power bank, ensuring convenient use anywhere, anytime. A rechargeable version is also available to suit different needs.

The FUV-100, FUV-100A, and FUV-200A models all have the same appearance and usage method.

Specifications

Model	FUV-100	FUV-100A	FUV-200A
Wavelength	365nm		254nm
Battery capacity	Plug in, no built-in battery	Built in 1200mA rechargable battery
Power supply method	Type-C port
Power source	DC5V/1A adapter or power bank
Eyepiece	4X magnification
Switch	Rocker switch
Power	2W
Color filter	Included
Dimensions	98×60mm
Weight	200g