Excellent Lighting Brightness and CoverageLUOLEDE book lamp is equipped with 9 high-quality LED lamp beads, the light is bright but not dazzling, effectively protecting your eyes. The head of the reading lamp can rotate 90 up, down, left, and right,expanding its illumination area by 40% and completely covering 2 pages of paper. Enjoy a brighter, more comfortable nighttime reading experience in bed![Unique 2 Timing Modes] Turn on the book light, press and hold the power button for 3 seconds,the green light will turn on, and the book light will automatically turn off after 30 minutes; continue to press and hold the power button for 3 seconds, the blue light will turn on, and the book light will automatically turn off after 60 minutes.extinguished. The unique timer shut-off allows you to sleep peacefully and save power; it can also remind you that you have been reading for 30 or 60 minutes, pay attention to rest, and relieve eye fatigue.[3 colors and 5 levels of brightness dimmable]LUOLED reading lamp provides 3 color temperature modes: amber light (3200K), mixed light (4000K), cool white light (6000K); amber light eliminates 99.9% of blue light, protecting your Eye, mixed light and cool white light make your reading and learning more comfortable and enjoyable. Each color temperature mode has 5 levels of brightness adjustment, ensuring you can create the ideal atmosphere for your reading experience!USB Rechargeable Book LampThe book lamp has a built-in 500mAh rechargeable battery and can provide continuous lighting for 8-80 hours. To charge the desk lamp, you only need to open the bottom cover to plug in various power sources such as a power supply, computer or USB socket. No additional charging cable is required,making charging very convenient. The portable size, battery indicator and long life make it the perfect reading companion for work and travel.