Ion ball lightning has two modes:

1: one is the ON bright mode， is the opening has been bright， can use OFF off;

2: the other one is the SOUND control mode， this mode is enabled， there is asound of it will be bright， for example: clapping， shouting， and also can be put in the bars， disco this sound very big place， so the ion sphere will follow the musickept flashing.

4 inch:

6 inch:

两个尺寸比较