LED toilet seats, of course! LOL
If I owned a city - and a supply of vintage lights to install, I might do something like this:
-Large cobra heads or clamshells for highways (GE M1000, Westinghouse OV-50 etc), 1000w MH or mercury
-Clamshells (Westinghouse OV-20, GE Form 400, etc), 400w mercury or MH for arterials
-Fluorescent VHO (Whiteway, GE, etc) with Powergroove lamps for the Main Street.
-Post top acorns and pole mount gum balls, CMH 3000K lamps, for residential streets
-NEMA mercury fixtures for utility/area lighting
-SOX fixtures with drop lenses for the outskirts of town and bridges
HPS floods to light building facades. Clear mercury floods to uplight trees. T12 4100K fluorescents to light signs.
Not a big fan of ballast-in-arm/power bracket fixtures or radial waves. Cobra heads would be fine but I like remote ballast clamshells better.
LED would only be allowed for holiday lighting. Traffic signals would have Duro-Test incandescents. No buildings would be allowed to be painted clashing colors like red and yellow together, or would corrugated metal be allowed as siding. Apartments must have balconies and fire escape ladders. Energy subsidies would be allocated to businesses that use T12 fluorescents with magnetic ballasts.
