For the most part I prefer the trichromatic lamps because of the combination of brightness and improved color rendering compared to the standard halophosphate...
I have heard that photocells tend to "drift" in the turn on and turn off times as they age, but has anybody had any experience with sporadic operation prior to...
... in ... Merchandising ... -->Lee, you never fail to impress me with your practical experience with lamps! It seems as if you've fiddled around with every...
... off ... operation ... and the light ... and the sun ... a second ... so I figured ... this time ... running again. ... photocontrol. I ... have shut ... ...
I have a number of photocells on 5 school buildings. The trouble I've been having is that they don't always turn off the lights, and some run 24 hours a day....
I have seen a couple fail open on public streetligts. I have been able to get them to work by hitting or side kicking the pole. I found one that flashed for...
I would be willing to bet that it is due to the surges in the power line that cause them to fail after a lightning storm. Most photocell manufactures make ...
<<< To this day, 34 years later, cool white lamps and blue green colors give me the heebie-jeebies. Weird, huh? >>> I wouldn't call it weird considering you're...
... line that ... manufactures make ... the off position. ... It's a well known fact that CdS cells fail when exposed to moisture. You can see the etched...
To the streetlights group, I have been quite a bit of a pack rack, including packratting some items that get a bit towards interest of this group. I have some...
Don Klipstein
don@...
Jan 8, 2007 4:45 am
5366
I've been looking at the countries of origin for a variety of bulbs from different companies. Here is what I've found so far (in no particular order). General...
They do have multiple plants and plants in other countries. I don't follow this closely but I know that GE bought the formerly state-owned Tungsram plant in...
All photocontrols seem to drift a little over time, usually turning on earlier/turning off later as they age, although I've had several that turn on later/turn...
I was wondering if anybody here has any experience with the "non- cycling" type of HPS lamps. Are all HPS lamps that are manufactured now made to be non...
I have seen 2 streetlights that were pretty dim with HPS lamps, and just figured that the bulbs were at end of life. However when maintainence was finally...
I have a question concerning the irratic operation of 2 MH floodlights used in a parking lot a couple blocks from me. The first light was burned out, when it...
... There can be several reasons. Without being able to inspect the dim burning lamp and ballast, one cannot know for certain. Since the entire fixture was...
Dave Maddlone
osdtm@...
Jan 13, 2007 6:23 am
5373
May have had a discolored plastic refractor (caused by age and/or UV light) although that alone is also not an excuse to replace the entire fixture....
I have a question about getting an old fixture from the utility. During road construction 6 fixtures, brackets, and poles were removed. 5 of the 6 were taken...
In my experience with MH, it is normal for a new lamp or a lamp that has been switched to a new position, ex. base-up to base down, etc., to temporarily put...
... craze for ... the big ... cold colors ... For whatever reason, I rather like the ugly greens of the 50's and 60's, I suppose it's a matter of association...
... Lightning strikes can do some really bizarre damage. We don't get much of that around here but I've seen pictures of circuit boards where some traces were...
... During road ... 6 were ... removed. The ... wondered about a ... old ones were ... I think most collectors would just go take it when nobody is looking. ...
Does anyone have any pics of florescent lights that were popular during the 50's and 60's?? It would be great if we could get some posted on here. Also, I have...
may I recommend joining www.lighting-gallery.net to post pictures and that way you can have people comment your pictures too!!! It's in my opienon easier to...
What kind of fixture is it? A cobrahead? Marvin ... From: chasze889@... To: streetlights-l@yahoogroups.com Sent: Saturday, January 13, 2007 1:35 PM ...
In a message dated 1/13/2007 7:58:12 PM US Eastern Standard Time, ... Does the photocell still consume power even when it goes bad, i.e. the light runs...
In a message dated 1/13/2007 8:01:59 PM US Eastern Standard Time, ... Thats what I wanted to do, but of course I don't have anybody here that agrees with me....
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