1. 【9 Adjustable Brightness Modes】 3 colors x 3 brightness settings, designed with 7 LED bulbs and 9 brightness modes in total. Long press the button to choose 3 different color modes (White, Warm, White and Warm light) according to your need and short press to adjust the brightness Low / Medium / High for each color mode to meet your reading needs , work and sleep and etc.2. 【USB Charging & Battery Level Indicator】 Built-in rechargeable lithium-ion battery and USB port, it can last up to 60 hours playing without charging (at low light setting) and does not take long to fully charge.3. Eye Protection LED Source】 The light source is soft and suitable for reading / working, as it will not produce flicker, shadow, dizziness or negative radiation. The most suitable light can shine on both pages of a book, notebook or whatever, making reading less painful on the eyes. You can read in bed to enjoy your time without disturbing your partner or roommate.4. 【Adjustable Neck & Sturdy Clip】 The flexible gooseneck allows it to be folded 360 degrees in any position, and its lightweight size and compact design make it easy to carry. The sturdy clip-on clip can be used on its own or to firmly clamp an e-reader, book, bookshelf, etc. It adapts to many places.5. 【Portable and Multiple Uses】 When you are in the dark or under unreliable light source, you can use it as a lighting tool, like reading lamps or bedside lamps, to write a journal , study, read at night for children, light the keyboard, apply makeup, paint, adapt clothes, hold a desk, computer light, crafts or other odd jobs.