SP5MAT - 

All-in-one unit, pre-assembled with a back can and mounted transformer, features a quick flip 70 or 25 Volt selector switch and an easy select transformer wattage dial featuring the choice of 8 or 9 individual wattage tap settings covering your complete range of needs. This flame-retardant, ABS unit also comes with insulated wires, has an attached metal safety loop and easy mount tabs for securing the unit.