Heat per Pulse (mJ)

The amount of energy converted to heat in the coil during a single pulse, expressed in millijoules (mJ). Heat per pulse increases sharply with higher current. Doubling the current produces four times the heat because the relationship is exponential. At low pulse rates, individual pulses can be relatively warm without causing problems. At high pulse rates, even modest heat per pulse accumulates into a significant continuous thermal load. This metric, combined with pulse frequency, determines the total heat the device must manage during a session.