KRight&reg; Plasma Ball Sphere Lightning Light Lamp Party Magical Ball (6 inch) The base produces high frequency electromagnetic waves that cause the gases to turn into plasma. If you touch the ball, the lightning bolts will combine into a strong beam and follow the movement of your finger. Clap hands to it and watch the pattern of the sound reflected in its striking pulsations. A great gift for your friends. The products use incentive plasma discharge principle, making it suitable for dance halls, bars, music cafes, science museums and other household places