A photosensor control unit for use in a lighting module has a light sensor and a switch adapted to operably control a light source such as a plurality of LEDs responsive to the light sensor. The light source is adapted to be mounted in the lighting module, and is configured to produce light having wavelengths within a first range of wavelengths. The light sensor is adapted to be mounted on or about the lighting module, and is responsive to light having wavelengths within a second range of wavelengths. The second range of wavelengths is exclusive of the first range of wavelengths. The switch is adapted to operably control the light source responsive to the light sensor such that the light source emits light having wavelengths within the first range of wavelengths responsive to the presence or absence of light within the second range of wavelengths.