Hi Pat, What are those blue photocontrols in the box you have. Are those DTL's? And so you have any Fisher Pierce ones that were made after 2002? Thanks, ...
I recently bought an antique hanging GE light from an estate sale of a deceased lighting collector on Cape Cod. Not one person there knew anything about it, so...
... It sounds like you've found an old series incandescent streetlight, does it still have the old series socket in it or has it been converted to a standard...
... I'm not sure what an old style socket would look like. But I do think it had been converted as the present socket looks like a normal modern type and size...
... Can you get a picture of the socket? It *sounds* original but it's hard to say without seeing it. Due to the high open circuit voltage, the series heads...
This has been a mystery for quite some time as few people who have ever worked with these seem to be around anymore but after examining a number of photos,...
... A typical "series" socket has two fin-like prongs about 2 inches long and a half inch wide sticking out the back. If you haven't disassembled the fixture...
... long and a half inch wide sticking out the back. If you haven't disassembled the fixture thorougly you will probably be unable to see these fins. These...
You need to be careful of this feature which gives away the fact that a socket is for series lamps. Look inside the socket at the contact button at the bottom...
... lamp center contact. You might see a small prong extending to the side that touches the side shell of the socket when the lamp is unscrewed and the contact...
That above pictured socket had MUCH beefier porcelain than mine. My socket looks identical to a modern one and is actually made by Leviton (which, no help,...
... See if your local library has old issues of American City magazine, I've looked at a number of them from the 1950's and they have quite a few streetlight...
Anyone from New Jersey or New York? There are some incredibly nice lamps on long remote ballast mast arms in North Jersey. Also, westchester county new york...
... making a comeback in NYC too. They were just used at the manhattan (inbound) side of the Holland tunnel between NY and NJ. YOur photos were great! ... ...
Could someone please explain the difference between metal halide and high pressure sodium? I really do not understand all the technical jargon; I just noticed...
The white light is Metal halide. The orange light is High Pressure Sodium. Simple as that. Rick C-6. diapason41 <diapason41@...> wrote:Could someone...
... Sodium. Simple as that. Rick C-6. Also, most new Mercury Vapor lights appear to be white, though in reality they are still bluish-green. These bulbs are...
Hey, thanks for that! As I said, I'm not a great fan of some repro fixtures, but I guess that this is the best we can hope for, short of keeping the old...
No, the white coating on mercury lamps is NOT a "lens," nor is it a "diffuser" or "refractor." It is a phosphor that is activated by the invisible UV light...
... As others have said, metal halide produces white light and sodium produces yucky orange light. HPS does have the advantage of higher efficiency (on paper...
... of ... hope to have a friend post them. The NYC area still has many different types of lamposts/fixtures--especially in New Jersey. ... manhattan ... ...
... <diapason41@y...> ... and ... technical ... all ... HPS? ... installed ... with ... poles to ... glass ... where ... ever ... brighter ... higher ... able ...
... LPS or HPS? LPS is a deep saturated yellow almost identical to the amber section of a traffic signal, it's monochromatic and has no color rendering at all,...
... It's as if the lights were trying to tell me "Look, Billy, I'm a mercury vapor....PSYCHE. Fooled you." ... it's ... A trained eye can quickly distinguish a...
I know that when a HPS bulb cycles that it is hard on the ballast as it is constantly overheating, but how does it effect it with a dim bulb? I read today...
Why do some HPS bulbs cycle when they are going out, other go dim, while yet others go out completely? Is there a certain characteristic while making the bulb...
A streetlight down the street from our house burned out last week. We called it in for repair, and yesterday they tried to repair it, but ended up taking the...
Does anybody in this group work for a company that services the streetlights in operation? I was just wondering if the replacements bulbs used are truly new...
... The biggest probem are the repeated high voltage pulses from the igniter trying to start a dead lamp or restart a hot lamp when it goes out breaking down...
... They always use new bulbs, many bulbs are cheaply made now and don't last well, it's also not uncommon to get a dud bulb from a batch of otherwise well...
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