FMS Model 55-A4F is specifically designed to distribute the secondary voltage of a neon transformer. The unit will handle 7500 Volt and distribute this high voltage to upto 4 circuits from a single transformer. For this reason the Model 55 is occasionally referred to as a "neon animator". The Model 55-A4F is housed in a stainless steel cabinet with insulation of electrical quality glazed porcelain. The magnetic speed adjustment can vary the flashing speed from 35 - 300 flashes per circuit per min.