Lamp assembly

The utility model discloses a lamp assembly, and relates to the field of lighting devices. The lamp assembly comprises a lamp body and a hanging ring. The lamp body comprises a mounting part, and a matching groove is formed in the mounting part; the lifting ring is in a semi-closed ring shape with an opening, and the size of the opening is adjustable; the lifting ring comprises a matching part arranged at the opening; and the matching part is configured to extend into the matching groove to be matched with the matching groove or retreat from the matching groove to be separated from the matching groove when the size of the opening is adjusted. On one hand, the lamp assembly can be matched with or separated from the matching groove of the lamp body by adjusting the size of the opening of the hanging ring, and therefore the efficiency of installation, disassembly and maintenance work between the hanging ring and the lamp body can be improved; and on the other hand, due to the fact that the size of the opening is