Patent ID: 7654711

Claim:
A lamp assembly, comprising: a light module comprising a first fixing plate, a second fixing plate mounted on the first fixing plate and having a plurality of fixing pieces pivotally connected on a periphery of the second fixing plate, an electronic ballast mounted on the second fixing plate, a reflector having an opening for allowing the second fixing plate to pass through and fixed between the first fixing plate and the second fixing plate by the fixing pieces, and a lamp disposed on the electronic ballast; a stem having an end coupled to the light module, and comprising a plurality of connecting tubes and a plurality of connecting assemblies connecting the connecting tubes; and a base coupled to the other end of the stem; wherein an inner diameter of the opening of the reflector is greater than an outer diameter of the second fixing plate, and smaller than an outer diameter of the first fixing plate, the fixing pieces of the second fixing plate are rotated inward for allowing the second fixing plate to pass through the opening of the reflector, the fixing pieces are rotated outward for fixing the reflector between the first fixing plate and the second fixing plate, and each connecting assembly has a male joint with an L-shape projection at one end and a female joint with an L-shape slot at one end corresponding to the L-shape projection of the male joint.