LED tube lamp

An LED tube lamp, comprising:

• a glass lamp tube comprising a main body region and two rear end regions, each of the two rear end regions coupled to a respective end of the main body region;
• two end caps, each of the two end caps coupled to a respective rear end region, each of the end caps comprising a lateral wall and an end wall, wherein the lateral wall is substantially coaxial with the glass lamp tube and sleeving with the respective rear end region, the end wall is substantially perpendicular to the axial direction of the glass lamp tube;
• an adhesive disposed between each of the lateral wall and each of the rear end regions;
• an LED light strip comprising a mounting region adhered to an inner circumferential surface of the glass lamp tube and a connecting region electrically connecting to the mounting region;
• a plurality of LED light sources mounted on the mounting region;
• a power supply comprising a circuit board separating from the LED light strip and electrically connecting to the connecting region, the circuit board comprises a first surface and a second surface opposite to and substantially parallel to the first surface, and the first surface and the second surface of the circuit board are substantially parallel with the axial direction of the lateral wall;
• and
• a diffusion layer covering on an inner circumferential surface of the glass lamp tube,
• wherein the connecting region, one of the rear end regions, the adhesive and one of the lateral wall are stacked sequentially in a radial direction of the glass lamp tube.