Description: 【Eye Protection】Book Light features AA- full-spectrum lamp beads that restore true colors and provide soft, uniform lighting to ensure comfortable during study sessions 【Uniform Illumination】Micro light guiding structure and reflective paper ensure even light distribution across the entire desktop, offering a clearer and more comfortable view 【Efficient Heat Dissipation】Built in heat sink accelerates cooling, effectively prolonging the lifespan of the lamp beads for reliable long term use 【Adjustable and Portable】Touch dimming function allows easy brightness adjustment; foldable design makes it convenient to carry and store, ideal for students on the go 【Material】Crafted from PVC plastic with a compact size of 10.24inchx1.97inch, combining durability for any study space Specification: Voltage: 5V Material: PVC Plastic Power: 3W Battery: 18650 Battery 3.7V Size Chart: 26cmx5cm/10.24inchx1.97inch Package Includes: 1 Table Lamp Note: 1. Please allow slightly error due to manual measurement. 2. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you! 3. Wish you a wonderful on-line shopping!