At the exit of the box quality of the lamp seemed to me correct ... no more (I was expecting a little better from Mudder). Once connected to the USB jack on my laptop lamp moves slightly on 1mm or 2. So standpoint quality is 3 star only at this stage. Side lighting 10 LEDs illuminate correctly and on / off switch is just great! Thanks to him my lamp remains permanently connected to my laptop. This is the 4th ensured star! Especially that competitive products do not offer switch. A now see holding the lamp in time ...