[Fourpar]

There is a light sensor that turns the light on/off based upon how much ambient light exists. Thus your neighbors' go on/off at about the same time. If yours stays on/off all the time, no doubt you need to replace (or clean, remove obstruction from) the sensor (switch) on the side of the pole. Easy do it yourself project...But remember to trip circuit breaker in the garage before messing about with any wiring.