30X magnification with LED and UV light, 22mm lens diameter, 3-piece lens, achromatic optical glass, metal body. Achromatic lens: Limits the effects of chromatic and spherical aberration and eliminates color fading. Excellent color clarity and transparency. Magnifiers designed for hobbyists and professionals. Uses: For jewelers, machinists, stamp and coin collectors, artisans, photographers, hobbyists, watchmakers, and others who need to make microscopic observations of target objects. Battery capacity: 60mAh Mirror Diameter: 22mm LEDs: 6 cold white and 6 warm yellow and 1 UV violet / 12 LEDs mixed light Colour:Silver and Black Material:Aluminum and optical glass Package Contents: 1 x jewelry magnifying glass 1 x charging cable 1 x storage box 1 x lens cleaning cloth Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is 1-3cm.