Some negatives:
- The charger is an "English" charger supplied with a "French" adapter, certainly, but it's a little tedious to always go up, it goes a little in every sense, and "aesthetic" side, the adapter is white while the USB cable is black.
- The lamp is a fairly unpleasant sizzling when load while it is on.
- After a while, the battery loses its autonomy, it often needs recharging
However, I have 2 or 3 months, with use of about 3 to 4 hours / day and no LED has yet jumped!