Adding Happy Ambience: Collects red, orange, green, blue light, the colored christmas lights is bright without dazzle, as twinkling star at night, all looks vivid & dreamy. Ideal decoration for wedding, Christmas, New Year and other celebration party 8 Modes with Memory Function: indoor christmas lights offers 1 steady mode+ 7 flashing modes, meeting different occasion and mood. The memory function will remember the last mode you set, No Need reset each time turning on the string lights End to End Extendable: The 100 LED Christmas Lights is 43 ft long in total: 33 ft wire with bulbs+10 ft lead cord, the spacing between neighbouring bulb: 4 in. Each set twinkle lights allows up to 4 strands connected together to illuminate a larger range Timer Function: Press the button on the plug for 3 seconds, when the button becomes green, the timer function is on, the christmas lights outdoor will be 6-hour on and 18-hour off loop, which is convenient for use and saves electricity bill Safe to Use: Adopts premium dark green wire, powered by 30V Voltage, the Christmas tree lights will not overheat after long work. IP44 waterproof Xmas lights suits for indoor and outside decoration, like bedroom, apartment, porch, balcony, garden etc