These mains operated lights are multi-functional and offer 8 different multi-function settings including: Static, Twinkle, Fade, Chasing, Glow, Sequential, Waves, and Combination. This allows you to flick between settings or choose your favourite setting for the Christmas period. Additionally, these lights come with a useful timer function which allows you to set your lights up to come on at the same time every day. The timer will see your lights come on for 8 hours and turn off for 16 hours per day. Not only do these brilliant lights allow for a timer function and 8 multi-functions settings which means that when you switch the lights off at the mains plug they will still remember your timer settings and desired multi-function settings. This means you will not have to reset your lights every time you switch your main plug off. Shatchi 1500 LEDs Multicolour Compact LEDs Green Cable Christmas Home Decorations