4" LIGHTNING BALL The Lightning Ball is a mysterious, mesmerizing scientific desktop display. The glass contains a mixture of gases that turn into a plasma when exposed to the electromagnetic energy emanating from the coils in the base. The streaming lightning will respond to your touch. For an added effect, the lightning ball can be set to respond to music, noise, or any other strong audio signal. This is the first Lightning Ball we've found that also mounts onto a wall. For kids twelve and up.
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