The device is a good solution for those areas where no power outlet is available. We use the lamp to illuminate the entrance area, so you can surely recognize the person in front of the entrance in the dark. It lights up very brightly on close range - so you take the best ever this lamp with two LEDs, as is probably too dark with an LED. The lamp is very simple, you can among other things do not change the lighting duration and twilight to turn. In addition, it consists entirely of plastic. I would not place the lamp entirely outdoors, but it is not sealed enough. For me it is mounted under the roof board and that's perfectly fine. The motion detector reacts reliably.
How long will the batteries (4xMono), I can not say yet.
For my for purpose of and the price (under 30 euros) I would buy this lamp again.