LIPAN LTD 5 INCH PLASMA GLOBE Retails @ $129.99 Our Price: $59.90 AMAZING TO WATCH! The Plasma Globe offers you a safe, fascinating way to demonstrate how lightning works as well as explain the concepts of potential differences and electron orbital jumping. A small Tesla coil produces a large potential difference between it and the glass of the surrounding globe, similar to a cloud and its potential difference with the ground. This potential difference uses inert gases inside the globe to complete a circuit and release its potential to the outer glass, just as a cloud releases its potential to the ground. The result? Bright, harmless, violet "lightning bolts" that respond to touch and sound. This mesmeric and hypnotic plasma globe also features a sound sensor which causes the Plasma Globe to dance to the beat of the music! This truly amazing Plasma Globe with (removeable bulb) stands 12.6 inches high and includes the AC/DC adapter. Model No: 10245 Weight: 2.25 Lbs.