The step-down transformer can be used to supply low voltage, useful for many applications in the lab. The unit consists of a step-down transformer with different tappings for different voltages, selected by selector switch. The A.C. output is obtained on the two terminals given on the front panel. Cat. No. Output a 2-12 Volt AC @ 2 Amp. b 2-12 Volt AC @ 3 Amp.