A remote dimmable energy-saving device (fluorescent lamp) (20) comprises a remote control transmitter and a dimmable electronic ballast (30) with a built-in remote control receiver (38), wherein said receiver and the dimmable electronic ballast are integrated together and arranged in the T4/T5 tube adapter for T8/T10 tube batten or a fluorescent tube batten. A signal processing circuit of the remote control receiver (37) and a ballasting control circuit (35) of the dimmable electronic ballast are integrated into a single dimming control integrated circuit to control the lamp brightness to any level in the full brightness range.