The Jewelry m UV Fluorescent Light Box Set is an essential tool for mstone identification, designed specifically for professional jewelers and mologists. With a precise wavelength of 365nm, the purple light emitted by this instrument allows for accurate observation of the standard UV light characteristics of mstones. The observation dark box, featuring a convenient drawer-style design, provides an optimal dark room environment for observing weak fluorescence and fluorescence distribution characteristics in mstones. Measuring at 170mm (length) x 170mm (width) x 140mm (height) and weighing only 2.6Kg, this compact instrument is easy to transport and store, making it for both laboratory and field use