LED beads can be used at night , no flash screen, long life. Optics lens, high magnification Engineering plastic material, metal support hose, free to bend, change the angle, easily change the height and position of the lens Lighted design, sufficient power, simple operation, easy to use Using white optical glass lens, large lens, available in Main mirror and Auxiliary mirror, the image is clear, the magnification is not deformed, and the light transmission does not hurt the eye. Applicable to electronic engineering, chemical engineering, printing plate making, philately, hardware, darning, mobile phone repair, reading, engraving;