The Original Nite Guard Solar Based on scientific research repels all night predator animals. The specially engineered flash of this product recreates the deep fear of being watched and repels the predator. Losing calves sheep goats and poultry to night predators will end using this highly effective product. Features & Benefits of Nite Guard Solar: great for keeping deer out of orchards or gardens automatically turns on at dusk and off at full daylight completely weatherproof solar powered and will last for years one unit will protect 3-5 acres multiple units required for 360 degree protection - one cluster of lights (4 Nite Guards on a post oriented E S W and N) Nite Guard Solar is solar powered and must charge in daylight before using. See more videos here. This will open a new website in a new window or tab. Close new tab or window to continue shopping.