Pyrotrons, headed by TJ Hays in Albuquerque, New Mexico, specializes in building state-of-the-art Tesla coils. Pyrotrons coils have capabilities unseen in any other Tesla coil; with the ability to control the length, brightness, and even the branching pattern of the spark, built-in ability to play music through the electrical spark, and an inherently safer high-voltage spark than other Tesla coils due to the high frequency at which the coil operates.