Variable Brightness：Whenever you need lighting, turn on the LED Desk Lamp and adjust it to the light level and mode you need (3 light modes x 10 brightness levels) Multi-angle Adjustment：When mounting LED Desk Light on one side of the table, the swing arm and head section can be adjusted to achieve various lighting angles. For a table that is approximately 2 meters long, it covers perfectly Save Space: LED Desk Lights for Home Office can be put away at any time when not in use. There's no need to worry about Clamp Light taking up space.The next time you turn on Office Lamp, simply pull it to the angle you want to continue working Relieve Fatigue：You will find that with SKELEO Clip on Lamp, you will be more comfortable and the light gives your eyes a longer adaptive use (3200K-6500K, warm light, natural light, daylight) Energy Saving：SKYLEO Clamp Lamp is easy to use by simply plugging into a 5V/2A USB port(The product does not include an adapter). Adjusting the brightness, the whole light has a power of 12W and the LED has an official life expectancy of 50,000 hours