Simply mount Mainstays 3-Lumen Solar Powered LED Mountable Step Light, Black (6-Pack) where they will receive adequate sunlight throughout the day and watch the LEDs come to life in the evenings. Each step light provides a soft warm glow of 3 lumens and can safely guide your guests down pathways, stairs and more after dark. Installation is quick and easy with no wiring necessary and the lights are virtually maintenance-free with no bulbs to replace. You can mount these lights vertically or flat. The outdoor lights turn on automatically at dusk and operate up to 8-hours on a full charge. For Optimal Performance we recommend placing these step lights in direct sunlight or as close as possible.