UNIQUE TIMER&ENHANCE READING COMFORT: The reading light built-in 30/60-minute auto off timer, it can select 30-minute in green light mode or 60-minute in blue light mode, ensuring you never forget to turn off the light after a satisfying reading. The book lights for reading at night in bed equipped with 9 LED beads, emits an even glow across the pages without flickering, shadows or that 't strain your eyes, even during marathon reading sessions.3 COLOUR MODES & MEMORY FUNCTION: This book reading light features 3 colour temperatures - (1600K/4000K/6000K). blocks 99.99% of harmful blue light, protecting your eyes during long reading sessions. With 5 adjustable brightness levels, you can set the brightness that's right . The reading light has a memory function, so time you turn it on, it will be your preferred light color and brightness, don't set it again!FLEXIBLE ANGLES & SECURE CLAMP: The clamp of book light clip on can open maximally 150. The light head can be turned left, right, and downside with angles of 90, 90, and 45 respectively, adjust the light head to your preferred angle. The clip boasts a generous width, ensuring a strong and reliable grip on all types of books.CONVENIENT RECHARGEABILE & REAL-TIME BATTERY UPDATES: The book lights for reading at night in bed has 500 mAh battery, enjoy an impressive reading time ranging from 8 to 80 hours, depending on your chosen brightness level. The rechargeable book light can be directly into any USB port, such as laptops, mobile power, and adapters. don' t need charge cable. You can stay informed about the battery remaining status with the help of the intuitive 4-power indicator lights.Please note: There is a slight color difference or discrepancy in kind, please don't mind, thank you!Colour:blue+whiteMaterial:ABS Package Contents:2 x Reading Light with battery and English manualOnly the above package content, other products are not included.Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.