Security LIghting

My step-son just moved out into the boonies and has no security lighting at all! When the sun goes down it is pitch dark. So, we are getting him one of these Sunforce 82156 60 LED Solar Motion Light to help him out a bit. With being out there all by his self most of the time and then having his kids on the weekends , they have to have something out there to at least give them a bit of lighting outside and to let him know if someone walks up to his house.  Plus, if the power ever goes out , he will still have this light. I think that would shock someone who might walk up onto the house , if they know the power is out , and it is pitch dark. They would walk up there thinking that they could get in and BAM, this would light up and make them think twice about it!!