Fully-closed electronic ballast device

The utility model relates to a fully sealed electronic ballast device, solving a problem of performance improvement. The utility model comprises a fully sealed metal casing, an electronic ballast assembly and a support frame. The utility model is characterized in that the electronic ballast assembly is arranged in the fully sealed metal casing and is installed on the support frame through the support frame fixed in the metal casing, insulated heat conducting media are filled in the metal casing, the electronic ballast assembly is in an open type, the electronic ballast assembly comprises a circuit board and a full set of ballast electronic components, the circuit board and the full set of ballast electronic components are soaked in the insulated heat conducting media, and power input leading wires and output leading wires are led out of the metal casing. The utility model is used on electric appliances, such as fluorescent lamps, etc.