... preheating start, preheat the filament, improve lamp life Patent T5 Electronic Ballast SpecificationMODELDECSPECIFICATIONTube type CRIWATTDimension(mm)In Stallation ... the National Electric Light Source Laboratory, using their own proprietary circuit design, fully compliant with Chinese 3C standard, stable performance, ... For more information please feel free to contact us. Patent T5 Electronic Ballast