Everyone has a different approach on exterior lighting, my approach was cheap and fairly simple and suited me, probably takes longer to type than set up and do
Exterior led lamps of your choice
Cheap pir from toolstation
Energy monitor smart plug
Smart app written specially to make it all work by Cobra a member here who still pops in now and again but has moved to a new SH environment
The whole thing is pretty simple, smart plug to cable, cable to pir, pir cable to led lights
The pir draws a minimal amount during the day and stays off until its internal lux meter detects the required on lux, when on lux is active set by the annoyingly small twidly dials on the pir movement is detected, the pir switches the led light on drawing current, the custom smart app measures the current draw which in turn allows for anything to happen within smartthings, maybe another led light coming on if plugged into a smart socket, maybe switching a tv to a camera input which is what i have
In my case, if someone walks down my drive, my led security lights come on, my tv switches to a camera input on the tv, i could and sometimes do use another smart app that triggers my facia led lights to flash police colours or at Halloween my led lights are set to storm setting from a Fibaro rgbw controler