Each light cycles through red, blue, white, and green.
Promising review: “My pool is so old school and boring that I bought these to liven it up and what a difference!! My pool went from ‘meh’ to WOW! The balls are easily inflated by mouth like a beach ball. Once inflated, a few hours in the sun and they are charged and ready to go. They light up after dusk ( it has to be rather dark). There is no manual way to power them on or off; they glow all night long. The changing colors are vibrant and very beautiful. They have a loop at the top if you would like to hang them. They would be magical hanging in a tree or from a pergola. I really liked how easy these were to fill and charge, and I like the solar power and the amazing color display. They make my inner child happy.” —J. Matheson
Get a set of four from Amazon for $66.99.