1?��[Battery Powered] The reading light has a built-in 7V 1100mAh battery, no need to plug in to use, it's wireless to carry with you, especially when outlets are limited and power outages occur. 2?��[Eye Protection] Dual-head reading light, the top key switch can adjust 3 color temperatures and 3 brightness. 18 LEDs, energy saving, bright, flicker-free, no dark area, eye protection. 3?��[Foldable & Flexible] The gooseneck book light has 360?? flexibility, allowing you to illuminate where you need it. It also folds into a small lamp so it won't take up too much space when you're traveling. 4?��[USB Rechargeable] The LED book lamp is equipped with a USB charging cable, which can be charged via USB adapters, chargers, desktops and laptops, saving your waiting time. 5?��[Clip-on base design] Clip-on reading lamp, suitable for working, studying, crafting, display, camping or emergency situations. Used in bedrooms, offices, dormitories, living rooms, children's rooms, bathrooms, etc.