Electrum, or Electrum (for Len Lye), is a 1998 sculpture by Eric Orr and Greg Leyh built around the world's largest tesla coil. The coil operates at power levels up to 130,000 watts, 3 million volts and stands 11.5 meters in height. The sculpture is currently installed in New Zealand at the residence of Alan Gibbs. The top, spherical electrode of the sculpture is large enough to hold a human. The piece was the subject of a 2000 documentary, Lightning Dreams, by Alberta Chu.