Abstract: The present disclosure discloses a lamp, including a lamp body and a cover ring sleeved on an outer side of a bottom of the lamp body, the lamp body is rotatable relative to the cover ring; an outer side wall of the bottom of the lamp body is provided with a first limiting member extending horizontally, and the first limiting member is configured to limit a position of the lamp body in a vertical direction; the first limiting member is provided with a second limiting member protruded outwardly; and an inner side wall of the cover ring is provided with a third limiting member corresponding to the second limiting member; in a case that the lamp body is rotated relative to the cover ring, the second limiting member and the third limiting member are interfered with each other to prevent the lamp body from rotating unrestrictedly.