Nite Guard Solar®, based on scientific research, provides a safe, solar-powered FLASH OF DANGER which recreates the deep fear of being watched and repels all night predators. Protecting campsites, property, and cabins from night predators will be simple using this highly effective product. Automatically turns on at dusk and off at full daylight. Solar Powered, Environmentally Friendly, Weatherproof, Emits a LED "Flash of Danger" seen by animals up to ¼ mile away. Also excellent for Home Security. Mount at eye level of predator. Multiple units required for 360 degree protection. 60-day money-back guarantee and 1 year warranty.

I recommend mounted up high for a dummy security light.  (At a location where a security camera would be.) 

The light can be seen from a 1/4 mile.

No batteries required!  No maintenance!