It can be used for reading, repairing, jogging at night, knitting, etc. You can re-use it by recharging, so you no longer waste money on the battery and reduce the generation of battery waste. Book Lights For Reading At Night LED Neck Reading Light, Book Light In Bed, Dimming 3 Colors With Bendable Arms, Suitable For Repairing, Night Running, Reading, Walking, Knitting(1pc Reading Lights For Books In Bed The brightness of each color temperature can also be adjusted. THE PERFECT NIGHT READING LIGHT 3 light colors, stepless dimming, narrow beam, brightness can be adjusted according to your needs, will not affect your partner's sleep It can also be used as a desk lamp on a table. 【RECHARGEABLE AND LONG-LASTING USE】This reading lights for books in bed has a built-in 1800 mAh battery. 【WIDE RANGE OF USES】This book reading light is made of high-quality silica gel, which is soft and skin-friendly, and it will not stimulate the skin when hung on the neck. The use time is about 10 hours after the battery is fully charged. You can adjust the color temperature and brightness according to your own preferences and usage scenarios. Aazon.co: TSINGREE LED Neck Book Light USB Rechargeable, Hands Free, 4 Super Bright LED Bulbs 【CHANGE 3 COLOR TEMPERATURES&STEPLESS DIMMIN】This book light for reading in bed has 3 color temperatures to choose from: white light, warm light, and warm white light. Yeelight LED Neck Book Light - 40 lm de luminosidad To create a perfect light angle for yourself.