New PIR sensor problems

[Reading Royal]

Hi
I have 2 lights on my gateposts operated by a single PIR.
The PIR has failed so I have tried to replace it myself (with this one 180° PIR Sensor Black - https://www.toolstation.com/1800-pir-sensor/p11555) but now only one of the lights will come on.
I have taken a photo of the before and after, any help would be gratefully received.

 

[westward10]

The PIR is obviously functional, looks like you have a supply in and one cable out to the lights. Maybe you need to check the cable between the lights. I assume you don't have a duff bulb at one of them.

 

[Reading Royal]

Hi,
Thank you for the reply and sorry for the late response. it was a dead bulb
It was working fine before I made the change.

 

[westward10]

Thanks for the feedback much of the time we get nothing back.