LEDNICEKER Decorative String Lights, Solar Powered Bright Micro LED, 40ft Long, Multiple Flashing Modes, Outdoor Lights String for Tree, Patio, Lawn, Garden(Multi-colored, 100 LED Lights) The LED string lights are solar powered, no extension cord required, safe, energy efficient and environmentally friendly There are 2 controlling buttons at the back of solar panel, one for ON/OFF, one for mode switch The solar panel will charge the battery during the day by converting solar energy and the sensor will turn on the lights automatically at night The lights are weather proof from raindrops, suitable for both indoor and outdoor use The string lights will be your ideal choice for decorate your home, room, kitchen, garden, patio, lawn, porch, patio, Christmas, camping, party, holiday, wedding, anniversary, etc.