About Our Lightning Tubes:
The Lightning Tube contains a bright white, fast-moving plasma discharge with appearance of real lightning, filling the evacuated space within a borosilicate glass tube. The tube is energized by two electrodes (one at each end), and matched with a custom power supply, which is manually adjustable to produce intense, fast moving lightning effects. This extremely active display produces an audible “ringing” sound as the plasma discharge ricochets against the inside of the glass. This effect is best displayed in low light.