Tesla Music Coil Science and Education Tools Artificial Lightning DIY Experiment with Acrylic Shell

Description 1 The side knob controls the arc size and the clockwise pointer is twisted The right knob controls the fixed frequency frequency and clockwise speeds up the arc spray frequency 2 Switch down to fixed frequency mode the knob can adjust the arc frequency and size3 Pause in the middle of the switch 4 Turn the switch to music mode use the audio cable to link the phone to the maximum playback and the knob can adjust the arc size5 Power supply DC 52VPackage included 1 x Tesla Music Coil