How it Works - Powered by solar panel, this solar mole repellent emits 3-4 seconds every 30 seconds to drive away moles/gophers/snakes. Recommend an installation of the yard mole repellents on every 96 feet throughout your lawn for optimal performanceEasy to Use - Just insert this gopher repellent stake in yard, lawns or garden which can get sunlight during the day. And turn it on, then it will protect your garden from all burrowing rodents such as moles, voles, gophers, groundhogs, snakes, etc Note: Keep solar pest repeller stakes under the sun to charge for at least 2 days before installationMole Repellent Solar Powered - Our solar-powered chipmunk repeller can work the whole time if there is sufficient and direct sunlight, just insert the mole stake into the ground, and turn on the switch to let it work. Gentle buzz will not disturb your family and petsWaterproof & Durable - High-quality ABS & PC and Waterproof technology allow this mole repellent can withstand various of weather such as rain, snow, frost, heat. Great solar light for outdoor use. Note: Choose the best location for sunlight exposure and wipe it regularly with a damp cloth. A dirty panel will reduce the amount of sunlight available to charge the units batteries