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.^