Nah, I don't think cobraheads are gonna disappear anytime soon. There's always gonna be a high demand for them since utility companies prefer them over any...
Hello everybody! Since I now live near LA, I have the opportunity to cruise around and check out the various cities for old street lights. Here are some...
-don't forget the low wattage MH cobraheads and acorns in San Marino also, and that intersection lit with 100W FCO clear merc... Lucky you, living near so much...
I just found some pictures I took of those light towers. They're underexposed (I set the wrong film speed), but they do show most of the equipment. I'll scan...
I am happy to have found this place. I dealt with street lights for the first time late last year in my employer's parking lots. I found this forum helpful...
Update on this fixture. I'll refresh your memory for those who may have forgotten the question. One of the flourescent fixtures in one of my classes makes a...
Last October I found a GE M400 250 watt HPS fixture that was dayburning. I reported it to the utility for repair. About the middle of November I went by this...
I have a question concerning fixtures with the twist lock PC's. If you were to remove the PC from the recepticle, would the fixture turn on? When I have seen...
When a PC is removed from the fixture, the lamp in the fixture will be disabled. Modern photocontrols will light the lamp for about a minute as soon as power...
I don't want to come across as negative, but I have to agree with you on this. I made some inquiries a while ago, and found the Vintage Insulators list and the...
I think it's a very common thing for a manufacturer to copy off another manufacturer's design, even if it's not in the exact same way as the original. As far...
Yeah I know what it is--JUNK JUNK JUNK! They HAD to replace good ol' preheaters with this crap and this is what you get. The arcing sound is prolly flashover...
... preheaters with this crap and this is what you get. The arcing sound is prolly flashover in the ballasts. these are junk and NO they don't save anything...
Here's an interesting take on the concept of manufacturers copying their luminaire designs off one another, from Detroit's own "Lite King," Mr. Gary ... ...
The lamp won't start with the photocontrol missing because the circuit is open without the PC in place. To operate a fixture without the PC in place you need...
These days, its more cost effective (time/labor/parts $$) if the lineman changes out both the bulb and the PC (if one or the other is bad). This way, they dont...
... http://answers.yahoo.com/dir/?link=list&sid=396546091 ... ____________________________________________________________________________________ No need to...
Yes, our power company does swap out the PC with each bulb change, but I really don't know if they swap out the bulb on failed PC's or not. [Non-text portions...
Hi Larry, How's things in Long Island? Marvin in Houston ... From: Lawrence Rogak To: streetlights-l@yahoogroups.com Sent: Monday, March 12, 2007 12:40 PM ...
Got another question for the experts. I had previously asked about using lower wattage lamps in our 400w HPS ceiling fixtures. Turns out when I used smaller...
Hi Don, Venture (and others) do make a metal halide retrofit lamp that will operate just fine on HPS ballasts. They are available in both 250W and 400W sizes...
That sir is a Venture Lighting REDUCED Jacketed MH lamp. It is a 250 watt MH in an ED-18 envelope designed for close-quartered fixtures. Oh BTW, don't ever,...
Sorry, but simply not true. Venture, Philips and GE have all offered "retro" MH in the ED-18 jacket designed for direct replacement of 250 and 400W HPS lamps...
... Others have already provided more details on this, but I'd like to reiterate one point here, please DO NOT screw around with this stuff more until you know...
Last night I passed by a cycling fixture, however I am uncertain as to the type of bulb in this fixture. I know that HPS are the bulbs that typically cycle,...
I found a few old M400 fixtures in the downtown area of where I live. Can anyone point me in the direction of where I can find a pic of one of these lights?...
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