Usage Tips:[Amber & Warm White Glow] 2 LED beads, 4 lighting modes (50% amber, amber; 50% warm white, warm white) for your choice. Short press to switch the brightness, long press to turn the book light off. The Eye-care amber glow can block 99.95% blue light, effectively protect your eyes from being damaged when reading. The warm soft glow helps create a cozy atmosphere for you[USB Rechargeable] Easily Charged with built-in USB, directly plug it into your laptop, power bank, adapter, car charger, or USB outlet for recharging, no additional cables needed. 200mA lithium battery, 1.5 hours charging lasts about 8 hours(at brightness setting). No more wasting money on batteries[Compact & Lightweight] Mini size design, 1.38 ounce, small and lightweight, ideal for clipping on a book when nighttime reading; can be completely folded flat and slim, portable for reading on airplane, train, or backseat of car when trelling[Flexible Lighting Angle] Completely flexible design, the led lens can be swiveled 90left and right in horizontal direction, and 45downward; The 315 flexible holder bends to any angle for your best viewing, no need constantly repositioning the light[Product Guarantee] CE, RoHS and UKCA cerification. This book light can be also used as a bookmark, or mini flashlight when power blackout. Perfect LED reading light for paperback books, magazines, bedtime stories etc. Great gift for your kids, friends and family