Once charged, it can be used hanging on a desk, on a screen to illuminate the keyboard, on a book, and even just on the desk.
For attachment to the desktop, it should not be too thick because it is the clip opens by itself and falls.
Lighting 4 LED is very powerful. It can light 1,2,3 or 4 LEDs to choose from, each lamp containing two LEDs.
The arms are flexible and easily positionable.
In summary it was a product that is useful in all circumstances with a very good lighting and wireless.