Beautiful lighting, adjustable focus. I have the same battery for over two months, so great autonomy even as I turn everyday few seconds. There are 3 modes, full, half and flashing light (a good thing for a seizure but it saves the battery). The construction is solid. The battery can be changed by unscrewing the back (orange switch). When I got it, it was so screwed that I am me not realized immediately and without manual ...... I went through the front. This is a great buy