The light is distributed evenly and clearly without sharp edges, it works great for piano, music stand, reading a book, concert, on a desk, for DJs, at the computer or as a stage light. Thanks to the positionable and rubberized clip, you can attach it basically anywhere. The light has three brightness levels and three color temperatures. 1800K protects you from blue light, especially when reading in bed at night; 3400K can easily create a relaxing atmosphere for your leisure reading; 6000K will help you focus on work or studies. The length of the arms is 24 cm, so the light can be directed exactly where you need it. Power is provided by three AAA batteries (not included) or a USB cable (included). You can use the USB cable to connect to a USB port on any device, such as laptops, a power bank to power a light, or connect the USB cable to a 5V/1A wall charger.