Input voltage: 160V to 260VACOutput voltage: 12VAC +/- 0.5V (rated input voltage: 230VAC)Output power: 50WPower factor: >=0.98Efficiency: >=94%Frequency: 25KHz to 40KHzSize: 106mm x 42mm x 18mmAutomatic switch-off in case of short circuit, overload, overheat or over voltageTemperature (degree Celsius): -40 to +50Keeping luminous in the whole life cycleHigh luminous efficiencyLife cycle increases by 100%Small size, light weight, low cost, low temperature and no noise