Cordless & Portable: Built-in battery takes away the hassle of cords. The cordless lamp's lightweight design makes it easy to move, ideal for bedrooms, dining rooms, patios, outdoors, restaurants, bars, and campsites to create a warm, cozy atmosphere 3 Adjustable Brightness Levels: Easily adjust brightness (20%, 50%, 100%) to suit reading, ambiance, or energy-saving needs. Switch between brightness settings with a simple touch of the power button for convenience Built-in Large Battery: The cordless table lamp comes with two 2600mAh rechargeable batteries, providing up to 8 hours of use on the bright setting and up to 40 hours on the low