The GE Truetemp 326B1230P001 oven requires 220-240 volts for operation. It is a high-voltage appliance that typically runs on a dedicated circuit to provide the necessary power for cooking and other functions. When installing or servicing the oven, it's essential to ensure that the electrical supply matches the required voltage to prevent any damage to the appliance or potential safety hazards. If you're unsure about the voltage supply or installation requirements, it's best to consult the oven's user manual or contact a qualified electrician for assistance.