This neck reading light has 3 color temperatures, 3 brightness settings, adjustable brightness from 50 to 200 lumens. It is suitable for all your reading needs, fabric, crafts, crochet, work or sewing, etc. It makes you comfortable to use in the form of an arch. Since the neck light rests on the shoulders, prolonged use is open without any discomfort. It has rechargeable lithium battery of 1000 mah integrated, this neck reading light can be used continuously for at least 4 weeks each day after a full 1.5-hour fast charge. It is equipped with improved LEDs to offer more uniform luminance and no ghost effect. Soft light can cause not only eye fatigue to reduce eye fatigue, but also promote the production of melatonin at night, allowing you to sleep better.