Specification: Lens Diameter: 220.0 mm Product Parameters: Material: ABS Color: White Product Size: 15*13.5*22cm Product Magnification: 3x Power: 4 AAA batteries (not included) Package Includes: 1 * Sensing Amplifier (battery not included) Product Description: Stepless Dimming, Sensitive Adjustment: By holding down the brightness button, you can easily adjust the brightness from 10% to 100%. It offers brilliant, glare-free LED ring light and up to 5x magnification without image blur or distortion. The brightness is also adjustable. Wide Range of Applications: This magnifying glass features no glare and a stand, making it suitable for individuals with vision impairments like macular degeneration, or for those who constantly need to work or read, do crosswords, engage in needlework, knitting, crafts, cross-stitch, beading, art, hobbies, electronic repairs, soldering, woodworking, jewelry making, or professional use. 3X Magnification: Enjoy 3X magnification for clear viewing of various texts. The daylight illuminated diffuser material emits soft light without ghosting, glare, or flickering.