how to make the christmas lights blink

To make Christmas lights blink, you'll need to connect them to a timer switch. This will allow you to control when they turn on and off, and how fast they blink. You can set the timer switch to turn on the lights for a certain period of time, and then have them turn off for another period of time. You can also set the speed at which the lights blink, from a slow, gentle blink to a fast, dazzling flicker.