Energy-saving eye protection: With USB power supply, the LED lamp uses about 75% less energy than traditional incandescent bulbs, saving you money. No flicker, no glare, no ultraviolet rays or frequent radiation, desk lamp compatible with children is perfect for protecting eyes. 3 light modes Multi-level brightness: The LED eye protection reading lamp consists of 24 LED lights, the clamp lamp offers cool light, warm light, infinite light mixing and brightness (10% - 100%), perfect for studying, crafting or reading. Memory function: The lamp automatically remembers the brightness and color mode from the last use. When turned on again, the light mode and brightness from the last use are restored. Reading lamp clamp: Reading lamp with scratch-resistant foam, clamps perfectly to music stands, tables, computer desks, headboards, drawing boards, etc. 360° flexible gooseneck allows you to adjust it to any angle. USB port: The USB adapter is compatible with all devices with a USB port, such as computers, USB wall chargers and power banks. The USB cable is 2 meters long.