7 colors change automatically (red, yellow, green, blue, white, orange, ) the switch to automatically charge during the day (sunshine enough) Light sensor activates at dusk There are three holes at the top and bottom for hanging on trees 1. Before the first use, please make sure to charge it in sufficient sunlight for at least 10 hours. 2. Be sure to turn on the switch before charging, it automatically light up only at night. 3. Our solar ball lights are waterproof, but not bumpproof, shockproof. Float naturally on cold water only, do not submerge. Color: Transparent Material: ABS Package Contents: 1 x Pool Light Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.