[5 Brightness Adjustable] This little book light has 5 brightness levels available, you can choose the most suitable level for your eyes. This reading light will memorize the previous setting of the brightness for you to enjoy the light simultaneously. There are 5 LED beads scientifically installed so the light can be evenly distributed on reading pages. The light is bright enough to illuminate the full pages, while it is dim enough not to disturb others nearby.

[3 Color Modes & Eye Caring] This tiny book light has 3 different color modes: amber reading mode(1800K), breezy reading mode(3400K) and precise reading mode(6000K). The amber book light filters 99.9% blue light to protect your eyes and to reduce your eye strain.

[USB Rechargeable & Long Lasting] Standard USB rechargeable and compatible to any USB ports on your computer, adapter or USB outlet. The built-in 500mAh battery provides you 10 – 80 reading hours (depending on your brightness setting). In addition, there are 4 power indicators to show you the power leftover.

[Flexible & Portable Design] The clamp of the clip on light can open maximally 150°. The head of the light can be turned left, right and downside with angles of 90°, 90° and 45° respectively. Only 1.41oz(40g), it is perfect for travel.