Neck Light, LED Reading Light, Portable, Foldable, Study Light, Bedside Reading Light, 3 Brightness Levels, Rechargeable with Silicone Arm, Perfect for Reading, Knitting, Camping (Black) 【3 Colors and 3 Adjustable Brightness Levels】The book light has 3 color temperature modes, yellow (3000K), warm white (4500K) and cool white (6000K). Each head has an independent switch to adjust 3 brightness levels. 【Rechargeable and Long-lasting】The reading light includes a high-quality rechargeable built-in 1000mAh battery, which can provide power for up to 80 hours (normal reading) without reducing the brightness. So, you don't need to buy batteries again. 【Neck-mounted reading light】It is bright enough to illuminate a whole page without disturbing your sleeping partner at night. Perfect for dormitory use. Flicker-free, glare-free design with advanced LED beads. Provides natural and soft light that does not tire your eyes even after long-term use. Both children and adults can use it. 【Comfortable to carry & Lightweight and Portable】This book reading lamp is lightweight and very comfortable to carry, as the rubber material makes the frame more comfortable when resting on your neck. Its arms are soft and adjustable so that you can get the most comfortable angle. Ergonomically designed around your neck, completely free your hands! 【Wide range of applications】This neck lamp is flexible and compact. It can be bent flexibly and easily put in a backpack or handbag, it does not take up much space on you. Read in the back seat of an airplane, train or car when traveling. You don't have to worry about light when reading in bed or in the car, walking the dog, repairing, crafting, working and many other things. You can use it as a flashlight, walking the dog at night, running, making and much more.