The 17” Mega Electroplasma Lava Lamp replaces slow-moving wax "lava" with real, live arcs of electricity to set the mood in your room, dorm or office. You’ll feel like a mad scientist from a vintage horror film as electricity pulses and glows in a kaleidoscope of purple, blue and pink hues. Choose a constant-on setting or a sound-reactive setting and the electroplasma will pulsate to voices or music. Touch the glass and watch the arc or electricity follow your finger!