4.8 Inch L X 2.5 Inch W X 4.3 Inch H Size; 50 Hz Frequency Rating; Ballast, Igniter, Capacitor, Core and Coil Contents; UL Approval; High Pressure Sodium Lamp Type; 400 W Lamp Wattage; 120/230 V Input Voltage; 4/2 Ampere Input Current