First of all, as has already been mentioned, make sure your two hispec 240v- 11w downlight's are compatible with PIR's.
Looking at the Luxomat Wall Occupancy sensor web site, they need a neutral wire. So you need 3 wired going to this sensor.
As HandySpary has mentioned, can you pull a 3 core through from your light to the wall sensor? How is the cable going to the switch? Has it been plastered in or is it in tubing of any sort?
Looking at the Luxomat Wall Occupancy sensor web site, they need a neutral wire. So you need 3 wired going to this sensor.
As HandySpary has mentioned, can you pull a 3 core through from your light to the wall sensor? How is the cable going to the switch? Has it been plastered in or is it in tubing of any sort?