Unlike other's 2 LEDs, our solar deck lights consist of 3 LED lights which means producing more light for your garden, yard, deck, walkway, steps and stairs. The step lights outdoor are powered by the sun, which automatically charges in the daytime and works at night. Charge for 6-hours to 8-hours in the sun during the day and bring 8-hours to 10-hours of lighting at night. The solar step lights are bright and very suitable for the decoration of gardens, courtyards and walkways. It can also provide a good atmosphere for Christmas, Halloween, Weddings and Birthday Parties. Use screws and expansion screws to install the solar stair lights, or buy double-sided (NOT included) adhesive to stick the solar powered deck lights where direct sunlight is available.