1.3 Light TempertureThis LED book light has 3 light temperture. Press the switch to choose light color (1600K, 6000K, 1600K&6000K). Easy to use, satisfying your different light demands in daily life. 2.Eye-Protection & Non-Flicker LightThe book light offers natural and non-flickering light to protect your eyes. There are 2 Colors, so you can freely choose the perfect color and brightness that keeps your eyes comfortable. 3.Battery Last Long TimeBuilt in Rechargeable 1000mAh Li-ion Battery, up to 16 hours to read. Easily charge this light via USB ports, Laptop, power banks, and 5V phone charger (NOT included). Standard USB-C cable included. Never worry about finding a compatible cable if USB cable lost. 4.Flexible Goose Neck & Rubber Pad ClipThe gooseneck is flexible to be adjusted on the position where you want. Perfect for headboard, table reading, travel, camping, kid's reading, study, laptop light, sewing and so on. Rubber pad on the clip protects pages from being damaged and offers secure and stable clamping.