High power electronic ballast, bconstant power output, small effects of light source,flux stable output.TUV,UL aprovaval. Type NO.TOP600LV-ASupply voltage120 ... and energy-saving. ·Long line driven,the lamp and the ballast can be installed separately,convenient for maintenance,especially in the ... compensation capacitance. ·Short start current time. 600W High power electronic ballast UL certified