Acme Electric Buck Boost Transformer, 120/240 VAC Primary, 12/24 VDC Secondary, 1.51 kVA, 50/60 Hz, 1 ph, 12.52 A at 12 V/6.25 A at 24 V Output Maximum, Wire Lead/Screw, Wall Mount, Class B/130 deg C, NEMA 3R, 115 deg C, 3.67 in L x 3.89 in W x 7.16 in H