Having the built-in solar panel to high off the battery cost is a great characteristic when away from different power sources. Even when bugs aren't bad it works properly as a battery-powered supply of illumination. It would be actually great to have this bug zapper and reading mild after a hurricane! We plan to use it on our porch with not-so-excellent screening and while sitting outdoors within the night. Like a 60's "black light" it makes some issues glow at midnight which is form of enjoyable! The instructions are good and the switches to turn on the studying gentle and set the lighting stage and for the zapper are easy to use. It has an LED that indicates when it's charging and fully-charged. We haven't left it out in the rain to test the water-resistance. It makes a loud pop when a bug meets its finish. The excessive-voltage wires are very well protected however Judy did get a jolt while she was carrying it searching for mosquitos with the zapper on. She thinks it arced to the keys in her pants pocket so it might be able to work on bugs by static discharge just like the shock you get when touching a door knob in winter. It is very powerful! Best not to carry it round with the zapper turned on!