Very bright. Sufficient charging even with excessive light.

I use the lamp at the entrance on the north side under a canopy, so do not gerdae under ideal loading conditions. Nevertheless, the luminosity is strong enough and is every night reliably available.
Compared to other with us in use solar lights luminosity is even surprisingly strong. Strong enough to find at a distance of 3 m without any problems the right key and the keyhole.
They can be mounted with the included mounting hardware. Theft protection, I personally find but a bit exaggerated.
The device is not cheap, but perhaps there is some time, a set of 3 lights, in which the unit price is a little cheaper.