Passage:

A city council member argues that the city should replace its old streetlights with LED fixtures. The member notes that in a pilot neighborhood, electricity consumption for lighting fell by 35% after the replacement. The member then adds that reduced electricity use will free funds that can be redirected to road repairs. Some critics respond that the pilot neighborhood also had fewer lights turned on after midnight because of a new dimming schedule. The council member replies that even if dimming contributed, LEDs are still the correct choice because they are more efficient than the old fixtures.

Which statement is the main conclusion of the council member's argument?