The virtual video tour is an accurate representation of my friends bunker, many hundreds were built to the same design.

The lighting is all 12 volt fluorescent and LED and with several hundred AH of battery capacity it is most unlikely that the candles would be needed, but it seems sensible to keep them just in case.
BTW, the original lighting was one bulb of 3 watts, that was it in total, no light in access shaft or the chemical closet room.