Smart Lighting

Lighting that switches, dims or schedules itself. In an office the return comes from lights that are off when nobody is there, which in practice means corridors, stairwells, store rooms, toilets and any floor where the last person out is not reliably the person who checks the switches.

Occupancy sensing is the version that pays back without anybody changing their habits, and it is also the version most often installed badly. A sensor that cannot see a person sitting still at a desk turns the lights off on them, and after the second time somebody tapes over it. Coverage and hold time are the specification, not the sensor's brand.

Scheduling suits reception areas, signage and external lighting, where the requirement is time-of-day rather than presence. It is also the easiest thing to get wrong twice a year if the controller has no reliable clock, so a unit that holds time through an outage matters here more than it would elsewhere.

Retrofit is usually the sensible route: smart switches and drivers behind existing fittings rather than replacing every luminaire. Tell us the wiring - particularly whether the switch positions have a neutral, because many Nigerian installations do not, and that single fact rules several product families in or out.