LED Solar Power Fairy Garden Lights String Outdoor Party Wedding 100/200/300 LED ?Solar energy supply, no extra utility electric cost, and no need to replace the battery. Light sensor controls the solar Christmas lights charging at daytime and auto on at dark. ?8 Modes&Memory Function: 8 Modes(combination, in wave, sequential, slo glo, chasing/flash, slow fade, twinkle/flash, and steady on). Build in Memory chip save your last modes setting and no need to reset mode every time. .