NOVELTY - The cleat (10) has an illumination module (28) positioned in a cavity of a bridge (16) so that a photovoltaic cell array (182) in transparent plastic case (180) of the module faces upward. An LED is held in the illumination module cavity, in an axial alignment with a light passage aperture of the case. The module energizes the LED during periods of limited light such that the light passes through the light passage aperture, and a cavity inside surface reflects the light upward and through the portion of the case exposed around the photo voltaic cell array.    USE - Cleat for securing to a watercraft for attachment to a mooring line.    ADVANTAGE - The module energizes the LED during periods of limited light such that the light passes through the light passage aperture, and a cavity inside surface reflects the light upward and through the portion of the case exposed around the photo voltaic cell array so as to indicate cleat location during periods of low visibility, thus preventing a person from falling from the watercraft. The cleat is injection molded from a high strength plastic material, so that weight of the cleat. The mold cycle time of the cleat can be reduced by forming voids in portions of the cleat to obtain a more uniform material thickness throughout the cleat. The diameter of the outer edge of the photovoltaic cell array is less than the diameter of a transparent plastic case, thus permitting the cleat to be seen from above when illuminated. The cavity inside surfaces is coated with a reflecting material to increase the illumination brightness. The illumination module is pressed into the illumination module cavity and held in place by friction, thus enabling easy replacement of the illumination module during failure.    DESCRIPTION OF DRAWING(S) - The drawing shows a perspective view of a cleat with an illumination module.    Cleat (10)    Bridge (16)    Illumination module (28)    Transparent plastic case (180)    Photovoltaic cell array (182)