Electronic ballast for 1000W HPS lamp Voltage: 220V 50/60Hz Current: 4.72A Input power: 1060W Output power: 1000W Power factor: >0.97 Voltage range: 170 to 265V THD: <10% Operating frequency: high frequency No audible noise, no flicker Env Temp: -20 to 60°C (-68 to 140°F) Env IP require: IP65 Protection: Short circuit, Open circuit, Overheat Size: 340*150*88mm Weight: 4.8kg