Light source: LEDPower: 3 AAA batteries (not included)Primary magnification: 2 ×Magnification of the auxiliary mirror: 5 ×Desk lamp magnifying glass, suitable for the elderly to read and so on.High quality acrylic lens, clear picture.Metal base, stably placed.main role:Used for philately, finance of the electronics industry, view banknotes, tickets, mail, coins, paper and print shops. Quickly and accurately identify counterfeit banknotes with extremely high resolution and purple light errors, please use this instrumentUnder this microscope, the pattern is clear and the lines are continuous. The pattern of counterfeit banknotes is mainly composed of dots, the lines are incoherent, shallow, fuzzy, and dimensionlessUsed in the industry, you can observe the internal structure of gems, the molecular arrangement of cross sections, and analyze and identify ore specimens and artifactsUsed in the electronics industry to observe traces and quality of printed circuit boards copper and platinumFor the observation and research of bacteria and insects in agriculture, forestry, food, etc.It can also be used for animal and plant specimens, scientific experimental research, etc.