High Quality LEDs: Lights are designed to be the perfect indoor decorations, whilst also being durable for outdoor garden use. 8 SPECTACULAR EFFECTS: These Christmas string lights has 8 lighting modes to choose: combination, in waves, sequential, slogs, chasing/flash, slow fade, twinkle/flash, and steady on. It comes with memory function, remember last setting automatically, no need reset every time. HOW TO ACTIVATE TIMER: To turn on the timer please hold the power button for 3 seconds until it turns green. You can then select your preferred lighting mode and the lights will remain on for 8 hours from that point onwards. They will then turn off for automatically for 16 hours every day. To turn off the timer, please hold the power button for 3 seconds until it turns white. The lights will then remain on. IP44 PLUG WITH TIMER: Waterproof rate: IP44 - Ideal for outdoor and indoor use. Equipped with a timer, these lights are programmed to be on for 8 hours and off for 16 hours, meaning