Music / Sound Activated Plasma Heart Night Light Lamp Lighting 110V Touch Sensitive: Bolts of lightning will follow the movement of your finger! Normal Mode: Nonstop random waves of the bolts Music Activated Mode: Built in music sensor, the bolts will respond and 'dance' in phase with music Base size: Diameter 3.95" (10cm) / Height 2.35" (6cm) Heart size: Height 3.55" (9cm)