I love these.  The glass is quite heavy, I hope they do not drop off the string I have them tied to.  Blue/green are my favorite colors.  I waited 3 days for them to charge up, and they never turned on, so I finally turned the switch to on.  It's in the directions, but I could not see the switch at first.  The switch you cannot see unless you look on the bottom of the battery plate, you have to remove it from the top of the glass.  So anyway, I am ordering 3 more for the back step.  Probably my favorite solar toy I have outside, right now.  Beautiful colors.