A beacon light for a free floating fishing device having a transparent or translucent upper housing slidably engaged and friction fit with a lower base. The lower base is configured to be removably or permanently attached to the free floating fishing device. A lighting assembly is housed within the upper housing, and the lighting assembly includes a power source in electrical communication with a light source. A conductive biasing linkage, such as a compression spring, is housed within the upper housing and configured to be in electrical contact between the power source and the light source. The upper housing, the lighting assembly, and the lower base are in coaxial and concentric alignment. The lower base is configured to contact the conductive biasing linkage to complete the path of an electrical circuit between the power supply, the biasing linkage and the light source in order to selectively energize the light source.