ED desk lamp is equipped with a professional light guide plate and lamp beads, the illumination brightness is uniform, without flicker, glare, reducing eye fatigue. With a sensitive touch switch, you can freely switch between 3 brightening modes of the LED reading light. The flexible hose of this LED study light can be bent at any angle, allowing you to easily adjust it and direct the light wherever you want. Thanks to its lightweight design and built-in battery, you can easily use night light at home/office/university as w The LED book light has a built-in 2000mAh high-capacity lithium-ion battery, which can work up to 20 hours after only 4 hours of charging. Not only can it be used wirelessly, but it can also work while charging, without worrying about power outages. The bedside table lamp comes with usb cable for charging.