3 Color Temperatures & 9 Lighting ModesNow you can easily control the brightness by just pressing a button in the middle of the lampshade. Our clip-on LED piano light is available in 3 color temperatures, 3000K warm, 6500K white and 4200 mixed color temperature. Each color has 9 brightness levels - low/medium/high. Low for relaxing, normal for browsing the web, and high for reading. See for yourself! Enjoy reading like never before:If you're looking for a cool rechargeable light, we've got it for you. We are proud to present the ultimate USB LED light that will accompany you while you study for your final exam or read the newspaper! The modern black frame and ergonomic design of this desk lamp will complement any room in your home! Up to 5 hours of continuous lightLithium battery Built-in 1800mAh, this LED desk light can work for at least 5 hours at full brightness. This rechargeable light will last longer if you dim the lights. Pure perfection, right? All you need to do is fully charge it for about 4 hours, then turn on the lights! It's so easy! Overload and Short Circuit ProtectionOur LED music stand lights have a built-in protection circuit. Avoid over-charging, over-discharging, short-circuiting and will not damage the battery! Charges via its USB port, and when the battery light flashes, use the clip to hang it anywhere! Such a multifunctional light: The Dimmable USB light provides warm/natural/cool white daylight and is very energy efficient. Perfect for home reading, office, internet browsing, product presentations, executive offices, presentations. Perfect for college dorms, teachers, students, nerds and of course you!