Usage Tips:HIGH POWER MAGNIFICATION: This magnifying glass provide 30X magnification, allowing users with low vision to read text, no matter the size. ULTRA BRIGHT 18 LED WITH 3 MODES: The built-in energy-saving 18 LED lights provides extra luminance to ensure an overall better reading experience even at night or dark places. The stepless dimmable 3 lighting modes (cold, warm and mixed) can be switched based on different light condition, which can reduces visual fatigue, which is very useful for people with macular degeneration or far-sightedness/feyopia. EASY TO USE: Comes completely assembled, just requires 3x AAA batteries (not included). Easy to operate with a simple ON / OFF button switch, making it perfect for the elderly or those requiring an intuitive magnification system. LARGE LENS(Diameter 3.15"): Magnifies 30x without optical distortion. Optimal to enhance reading and viewing very fine details in books, spapers, magazines, photographs, maps, electronics, miniatures, jewelry, pill bottles, medications, hobbies, models, and crafts of all kinds. PERFECT GIFT FOR THE ELDERLY: Great magnifier for seniors, Most elderly have difficulty reading the small print on coupons, prescription,medical bottle.clear magnifier with light also a great choice for those who have low or impaired vision of most types.