220v 12v power transformer

Advantages of toroidal transformers  High Efficiency  Smaller insize  Lower in weight  Less mechanical hum  Low exteriormagnetic field  Low off load losses  Single mounting pointTechnical Data Capacity: 20VA-25000VA Phase: Single Input: AC Powerwith Voltages of Various Countries Output: AC Current, Voltage,According to Customers Requirements Frequency: 50-60Hz VoltageRegulation: 12%-3% Manufacture Standard: GB/T15290-94,GB/19212-2006, GB2828-2829- Insulation Class: B, 130 CelsiusDegree; E, 120 Celsius Degree 87 Temperature-rise: ≤85 CelsiusDegree Winding conductor material; usual us copper, can usealuminum if you have special requirements
220v 12v power transformer