I'm very happy with these balls. They have a good size and weight, they're slightly lighter and smaller than the radiant balls, but heavy enough to be very stable in the air. The price is right as well.The light is bright and leaves beautiful trails of color in total darkness. Unfortunately, there is no strobe version of this ball. If you want a strobe (or more than 3 colors) you have no choice but to go with the radiant balls instead.