Whose electricity does the voice control light use?

The electricity charges for lighting, emergency lights and floor indicator lights of each floor are shared equally by the residents of that floor and distributed equally to the electricity meters of each household through a device called equalizer. As for how to divide 1 building, you have to ask the property. However, the equalizer is not accurate. Before the renovation of our floor, I made a special observation, and found that the money deducted from each household's electricity meter was different (the main brake at home was pulled down)