Patent attributes
A lamp and a lamp string are disclosed. According to the lamp base and the lampshade of the disclosure, the lampshade is connected with the lamp base, an inner wall of the lamp base is provided with a first flange and a second flange, an outer wall of the lampshade is formed with a first abutting surface and a second abutting surface, the first flange abuts against the first abutting surface, and the second flange abuts against the second abutting surface. The first abutting surface is a conical surface, a diameter of the lampshade at a position corresponding to the first abutting surface gradually decreases along a direction towards the lamp base, and an included angle between the first abutting surface and the second abutting surface is an obtuse angle.