why not a second

Perfect: the flexible part is 30cm, plus USB plug. The bright part is 10cm, enlightens well without being violent, with a spread effect without spot so.
Character: I preferred to add a black tape on top of the luminous part, to limit (even more) lighting the keyboard and avoid (even more) the screen.
Practical: the light is turned off with the sleep of the laptop, and Alume wake up, so no need plug / unplug, on a portable "fixed".
To see: strength in time, but I will if necessary, except perhaps for a second mobile "mobile".