Solar inground lights have built-in batteries; each light has 8 LEDs. After 6-8 hours of solar power during the day, the light can provide around 8 hours of lighting at night. The deck lights turn on automatically when it gets dark. Be sure to place them where sunlight can penetrate. Therefore, they can be perfectly charged during the day and work well at night. Adopt IP44 waterproof high-strength ABS design, no matter it is raining or snowing, the solar street light can work normally. TWO MOUNTING WAYS: Each lamp has two rivets and two brackets, so you can choose one way to mount them wherever you want. Versatile, can decorate your garden, park, street, lawn, hallway, etc. to create a beautiful scene at night. Be sure to turn on the switch before installing the solar light.