It takes light to get light. That works maybe in Africa but not here. In autumn or winter, the hours of sunshine just not enough to charge the battery sufficiently. And just this time of year I need the lamp. The continuous lighting is too bright. A little less would have been enough, then the battery would last longer. Within 8 days I had two nights no function, nor the gloom. Two days later the lamp is over. Malfunction! There is also positive: The light is very bright and a large area. Is easy to install, as it is very light and small. A Screw in the wooden wall of the shed was enough.
I'll look for a radiator without permanent lighting.