- for retrofitting of HaloX®-O housings into slab ceilings
- required hole size Ø 150-160 mm
- To increase installation depth
- for retrofitting in solid ceilings
- required hole size Ø 150-160 mm
- Take into consideration the ceiling thickness - at least 3 cm concrete cover is needed on top of the box
- To increase installation depth
- To increase installation depth