Battery Powered Sensor Lights

I have to install a motion detector and light found one I like but do not know real fire battery powered. Standard are electric. Of course, would be easier than wiring if they work. Anyone any opinions or options please let me know.

If this does not go on and off all night (just a few times a night is what he likes), you might think of solar energy (he charges a battery during the day). I had a long time and it's pretty good. One of the "my neighbors saw it and got one too. This is not a bright spot, but if you just need the light region (such as garbage cans nearby) or simply have a light coming to tell someone that you could watch TV, it's good .

The company I got mine for a long time has been sold and I do not know who has bought ...