Gem tools:UV Lamp Check whether a gemstone fluoresces to longwave or shortwave ultraviolet light.

Shortwave/Longwave Ultraviolet Lamp. Check whether a gemstone fluoresces to longwave or shortwave ultraviolet light.

Specification: Power Input: 220V 50HZ Wavelength: SW 253.7nm Wavelength: LW 365 nm

 Caution: The invisible radiations emitted by UV lamps, particularly short wave, can be harmful to the skin,and dangerous to the eyes.

 These lamps should never be looked at directly when using