Description 3 Lighting Modes And 10 Brightness LevelsThis desk lamp has three lighting modes. Warm white is suitable for relaxation and sleep, daylight mode is suitable for reading and learning, and cool white is suitable for work. At the same time, you can adjust different brightness levels according to your needs (10 levels: 10%-100%). Meet your different needs. Eye ProtectionThe LED reading lamp head is covered with a milky white diffuser to provide uniform light output, no glare, no flicker, no dimming. glare. Even if you stay in the study light for a long time, it will not tire your eyes and protect our eyes from harm. Intimate FunctionMemory function, the process light will remember brightness and mode used last time, no need to repeat settings. The USB cable has a blue light that allows you to quickly find the switch in the dark. If you press and hold the switch button for 2 seconds until the blue light flashes, the learning light will automatically turn off after 1 minute, making it easier to return to bed under the light. Friendly DesignMade of high quality aluminum alloy (non-cheap plastic) to ensure better heat dissipation, sturdy metal clamps with scratch-resistant protective layer can be used with tables, table heads, etc. Based on your request, the flexible gooseneck design can be deformed into a variety of shapes and angles. Energy Saving USB PoweredLED table lamp use about 75% less energy than traditional incandescent, save money and reduce your electricity bills. The lamp came with a 1.5m USB powered cable, and can be powered by any USB device such as USB Power Bank or laptop, is very convenient.