There really isn't any mercury vapor streetlights here. Everything is mostly high pressure sodium. Except for a few mercury vapors scattered throughout Cape Coral.
Same here for Brockton. There's 2 merc on Main Street, one on Sycamore Street, one on Park Road, and one at a dead end on Central Street. That's only 5 in Brockton. The rest of Brockton is High Pressure Sodium as you may have seen in my pictures.
Everything is HPS In Denver if it's over the road, cause of the huge HPS hangeout they did in the 80's. But here where I Live in Bailey it's all Mercury Vapor since IREA STILL likes using Mercury vapor today, they refuse to use newer lights.
My power company (Allegheny Power) still maintains existing mercury vapor lights, the other power company in Pittsburgh however (Duquesne Light) is changing all of their mercury vapor lights over to high pressure sodium and the majority of the mercury vapor lights in their area are gone.
Nope. I meant any mercs other than 100w and 175w ones were replaced by HPS. The main roads here have 400 and 250w HPS. The side roads still have good amounts of MV, but mainly HPS. If a MV light that isn't 100 or 175w has a bad PC, they'll let it burn until it dies. Once the lamp or another part fails, the fixture is removed and replaced with a HPS lume.
In MD for PEPCO roads that were orignally incandescent gum balls even in busy roads got converted with 100 or 175 watt and sometimes 250 watt MV......for some reason 400 watt is not used so often except in intersections! BGE is a different story..
Nice that they converted them. Here remote ballasted clamshells were used early, but neither Narragansett Electric nor NGrid has ever retrofitted or reused or restored old fixtures.
Login
As for LED neighboring Vaughan has a lot of LED now.
Personally I would have kept the old mercs.
But in Frederick MD, the gumballs and clamshells were converted with HPS or kept ballast but use HPS for MV lamps...which is really nice!