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