In this article it is stated that David Crowley wants to save energy by replacing the light bulbs in the city council chandelier with fluorescent bulbs. This is, of course, problematic as the bulbs are expensive and their disposal creates a hazard.
A better idea would be to just turn off the room lights altogether and use the desk lamps at people's desks.
You would save energy, cut costs and have a real dramatic visual effect to boot.
Keeping council members awake could be a problem, however.