| 摘要 |
An outdoor light controller (OLC) (50; 60; 100) for controlling the operation of lighting, particularly exterior lighting such as street lights or flood lights, is disclosed. The outdoor light controller (50; 60; 100) includes a controller located in a housing, contacts external to the housing for plugging the outdoor light controller into a socket on the exterior lighting, the contacts being configured to be received by an existing socket (20) defined on the exterior lighting for receiving a photocell. The controller (50; 60; 100) includes means for transmitting and for receiving signals to and from a central controller and means for switching the light ON and OFF. OLCs can be installed in an existing luminaire by removing its photoelectric cell from its socket (20) and replaced it with an OLC cell. The photocell is not required for switching the light on and off at sunset and sunrise as the controller switches the light on and off. In the event of failure of the OLC cell the failed OLC can be removed and replaced without requiring wiring in. |
