Good church lighting starts with observation rather than a catalogue of fittings. Visit the building during daylight, after dark and during a service if possible. Note whether a newcomer can identify the entrance, read the noticeboard and find a seat without hesitation.
Check how faces appear from the lectern, choir stalls and chancel, and record areas that become gloomy once furniture or people occupy the room.
The lighting brief should cover worship, readings, music, weddings, meetings, cleaning and private reflection. Each use may need a different balance of general light, focus and atmosphere.