Plasma ball, also known as glow ball, is also known as ion magic ball. Its appearance is a high-strength glass spherical shell, the ball is filled with rare inert gas (such as argon, etc.), and there is a black spherical electrode in the center of the glass ball. There is an oscillating circuit board at the bottom of the ball, through the power converter, the 12V low-voltage direct current is converted into high-voltage high-frequency voltage and applied to the electrodes.

After electrification, the oscillating circuit generates a high-frequency voltage electric field. Due to the ionization of the rarefied gas in the ball by the high-frequency electric field, the radiance is radiant, resulting in a mysterious color. Due to the high voltage on the electrodes, the light that occurs is some radiating glow, which is colorful and radiant, and looks great in the dark.
When the glow ball works, a field similar to a point charge forms around an electrode in the center of the ball. When the hand (connected with the earth) touches the ball, the electric field and potential distribution around the ball are no longer uniform and symmetrical, so the glow becomes brighter around the finger, and the resulting arc moves along the touch of the hand. Twist and dance as your fingers move.