Feed your pipes onto the posts. Mark out the radius of your tree. I like to use flour in a shaker/large spice container, but marking paint would also work. Size is completely up to your preferences, but I marked 3’ around the 10’ tree, 2’ for the 6’, and 1 1/2’ for the 4’ tree. You want your marks close enough to easily see a circle.
Put the female end of the first strand of lights into the pipe and feed the wire into one of the notches. (You can also add a star onto the top and plug it in here if you want to!)
From here you will feed the lights down to the ground, insert a landscaping staple, pull the strand +/- 1’ along the circle, insert another staple, feed the wires up and into the same notch you came out of, then out the notch next to it.
I only do about 2/3 of the circle, leaving a gap at the back to use less light strands, but you can do a full circle if you want. I usually end up using 3 strands for the 10’ tree, 2 strands for the 6’, and 1 strand for the 4’. Some of this is used to string between the trees and connect all of the lights.
To connect multiple strands and keep the plugs from pulling apart, twist one strand around the other before attaching the ends.
Turn them on and enjoy!