250 Watts (250 VA), 230 Volts to 115 Volts, 50/60 Cycle Step-Down Transformer, with UL line cord and receptacle. May be used to operate most 220 Volt needle positioners, spreading machines, etc. at 115 Volts. Dimensions: 3-1/2" high, 2-7/8" wide, 3-7/8" deep.