Separate LED lamp tube and light source module formed therefrom

A light source module at least comprising:

• at least one lamp tube, which is provided with a tube body, a light-emitting module and at least one driving module, wherein the tube body is provided with a light transparent body and a supporting body which are assembled with each other, a fastening means is disposed between the light transparent body and the supporting body, and the fastening means is a projection and a rail that are mutually engageable, and wherein the light-emitting module is disposed in the tube body and is provided with a first circuit board and a plurality of LEDs disposed on the first circuit board, and the at least one driving module is provided with a second circuit board and a drive circuit disposed on the second circuit board;
• and
• an electrical connection module, which comprises electrically conductive terminals and electrically conductive holes that are respectively disposed on the both ends of the at least one lamp tube, to provide cascade between the at least one lamp tube and another lamp tube or between the at least one lamp tube and at least one light emitting assembly.