 The white light is shown by a grey tower flashes white that lasts for 0.5 seconds and eclipses' for 4.5 seconds and forming with the Fort Point light House a range for crossing the bar for the main ship.Fog signals are electric sirens, one on the southeast end sounding two blasts of 4 seconds duration, every 30 seconds while the one on the northwest end gives a single blast every 20 seconds of 5 seconds duration.The three lighthouse keepers, known as "wickies", were dressed in prescribed formal uniforms which consisted of a "navy blue hat, sack coat, vest and trousers".