Eye-Care Book Light: This reading light casts a steady stream of focused cozy light, which is bright enough to read in bed but not so bright to disturb your partner. No flicker, No ghosting. Its soft and natural light will not strain your eyes even after long hours of reading. Perfect for your bedtime reading, working, travel, etc. 3 Lighting Modes: Rated for 30,000 hours, these 9 energy-efficient LEDs has 3 lighting modes: 4 warm white LEDs, 5 cool white LEDs, and 9 mixed LEDs. You can easy to switch between them just with a click of the button, convenient for the different reading environments. Portable & Flexible Reading Light: This practical clip-on reading light has a 360flexible gooseneck, bendable to virtually any direction to best suit you. Small and lightweight enough to slip inside your bag or pocket. Carry on reading anywhere, anytime! Long Battery Life: Built-in 600mAh battery, this book light has an ultra-long battery life than others. Fully charged after only 2 hours it offers up to 12 hours of continuous illumination at its lowest setting. Comes with a USB charging cable make powering up a breeze. Widely Application: The wide and anti-slip clip design makes this book light stand on its own and firmly clip onto book covers, tables, e-readers, bed headboards, laptops, desks, etc. It is a great gift for kids, elders, bookworms, or book lovers. Portable & Wonderful Gifts You can take the reading lamp anywhere, ideal for reading, camping, travel and office. Perfect gifts for Christmas, Birthday, Back to School, Graduation to family, kids, friends, lover, roommate, etc. 4 Lighting Modes 1. Press once -9 LEDs mixed light mode 2. Press twice- 5 LEDs in "Cool white light" mode 3. Press third button - 4 LEDs in "Warm light" mode 4. Press the fourth - off mode Specification Light beads: 9 LED beads Light color: cool white 6500K500K/warm white 3000K300K Battery: 600mAh LED Brightness: 20-30 lumens Package content: 1 * reading light 1 * USB charging cable 1 * User Manual