Solar Predator Protection Nite Eyes 4 Pack The Solar Nite Eyes protects against fox, cougar, bobcat, mink, coyotes, raccoons, deer, bear, wild boar, oppossum, skunk, owls, hawks, and more! Maintenance free, operates automatically. There are no batteries to install or change. Solar Nite Eyes employs LED technology. The Red LED's flash automatically at night and have a lifespan of 50,000+ plus hours so there is never a need to change bulbs. Solar Nite Eyes have been proven effective to guard areas such as: Poultry and Game Bird Pens, Gardens, Vineyards, Orchards, Flower Beds, Livestock, Campsites, Fishponds, around Trash Bins, etc. All units protected by a one year defect warranty.