These are rope lights, or string lights that are solar powered. The come in different colors and are ‘wireless’ meaning you do not need to plus these in!

Just place in your yard or anywhere there is sunlight and they will charge during the day.
Makes for great party settings, and they are free to power, so you dont have to worry about paying for the electric.

X'mas Solar Power 60 LED String Fairy Party Light Blue $1.55	60 LED 10M Solar String Fairy Lights Xmas Outdoor Party $15.28	Solar 60 LED Party String White Flash Night Light X'mas $1.55
60 LED 10M Solar Power Outdoor String Light XMAS W DZ56 $0.99	60 LED 10M Solar Power Outdoor String Light XMAS DZ56B $0.99	60 LED 10M Solar Power Outdoor String Light XMAS DZ56Y $0.99