Lamp Post Light Sensor
From Tom Cooke
If your lamppost fails to come on at night and you have ruled out a bad bulb, or if the light stays on during the day time, you probably have a bad sensor. Here is more information about the sensor, cost and sourcing:
The 'photo eye' for the lamp post is shown below and can be seen online at this link.
On a typical lamp post, you need to remove 3 screws to remove the lamp head and gain access to the inside of the post where the control mounts from.
If someone is careful and notes which wires on the existing control were connected to which wires inside the post, connecting the wires on the new sensor is easy. Unless you are experienced in working with electricity you should turn off the electrical breaker before changing out the sensor. Or you may prefer to call an electrician or handyman to tackle this job.