Low-profile niche for underwater pool/spa lights

A pool or spa light niche, comprising:

• a body including a back wall having an aperture for receiving a power cable and a threaded aperture for receiving a screw, and a side wall attached at one end about the periphery of the back wall;
• a hub including a back wall having an aperture for receiving the screw and a plurality of mounting ribs attached to the back wall, the hub being rotatable about the screw;
• and
• means formed in at least one of the plurality of mounting ribs for receiving a locking mechanism of a pool or a spa light, the locking mechanism rotationally engaging said means for receiving the locking mechanism in order to lock the pool or spa light in position with respect to the niche,
• wherein the screw is insertable through the aperture of the hub and received by the threaded aperture of the body to secure the hub to the body.