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Goldfinger Way Up There
I found this goldfinger with a flood mounted about 40 feet up on the side of an apartment building.From that height there wouldn't be a lot of useful light from the Goldfinger,I doubt that it has worked for years.
Keywords: Misc_Fixtures

Goldfinger Way Up There

I found this goldfinger with a flood mounted about 40 feet up on the side of an apartment building.From that height there wouldn't be a lot of useful light from the Goldfinger,I doubt that it has worked for years.

DSC03125 Sylvania 150W Kitchen Lite.JPG DSC04481_NEO_60W_Day-Glo_Heat_Lamp.JPG DSC04683_Goldfinger_Way_Up_There.JPG DSC03979_One_Of_A_Kind_Set-Up.JPG DSC03357 GE .JPG
File information
Filename:DSC04683_Goldfinger_Way_Up_There.JPG
Album name:lite_lover / Light Scenery Within British Columbia
Keywords:Misc_Fixtures
Company and Date Manufactured:Philips
Model Number:Goldfinger
Wattage:55W
Lamp Type:LPS
Filesize:62 KiB
Date added:Jun 10, 2011
Dimensions:1024 x 768 pixels
Displayed:164 times
Color Space:sRGB
Contrast:0
DateTime Original:2011:06:05 14:18:37
Exposure Bias:0 EV
Exposure Mode:0
Exposure Program:Program
Exposure Time:1/400 sec
FNumber:f/10
Flash:No Flash
Focal length:23.7 mm
ISO:100
Light Source:Unknown: 0
Make:Sony
Max Aperture:f/2.8
Model:DSC-W1
URL:http://www.galleryoflights.org/mb/gallery/displayimage.php?pid=6842
Favorites:Add to Favorites

Comment 1 to 17 of 17
Page: 1

gailgrove   [Jun 10, 2011 at 11:13 AM]
Yeah, like the yardblaster I saw mounted 40 ft up an antenna - useless Rolling Eyes
traffic light1   [Apr 23, 2014 at 12:31 AM]
11,000lm is not useless.
Form109   [Apr 23, 2014 at 03:24 PM]
the fixture is still mounted too high. it'll be lighting mostly the wall at that height.
streetlight98   [Apr 23, 2014 at 04:53 PM]
at 40ft up 11000 lumens is pretty useless. at that height I'd expect 400W or even 1000W HID.
traffic light1   [Apr 23, 2014 at 05:35 PM]
400w hps 28000lm would be more light but you would kill turtles and hurt the environment. 40ft is not that high Laughing RI has very tall poles for high ways they are to tall.
streetlight98   [Apr 23, 2014 at 06:53 PM]
400W HPS is 2.5X brighter so you can use 2.5X the mounting height. I'd rather see 400W CMH. Just as bright as HPS and white lights.

RI actually has pretty short poles. Only 30-35ft tall. In Ontario and Massachusetts they have like 40-50ft tall poles.

55W LPS is about equal to 250W MV or 150W HPS so it should be mounted about 25ft high. GE recommended 25ft for 100-250W MV/70-150W HPS in their 1977 street light catalog. They suggest 30ft for medium wattages and 35ft for 700-1000W lamps.

There are 100W HPS lights here that are mounted really tall on wood pole but they're so dim at that height they're inneffective. Sad
traffic light1   [Apr 23, 2014 at 08:56 PM]
I see I put RI. I mean Mass Embarrassed Thank you I under stand now 10,000 to 17,000 lm is for 25ft pole
joe_347V   [Apr 23, 2014 at 11:42 PM]
IIRC, 55w LPS only has 7800 lumens which is slightly more than a 175w merc so 40 ft is way to high for it.

Over here we have 40+ft poles on the freeways and some arterials and they all use 250w or 400w HPS.
streetlight98   [Apr 24, 2014 at 01:43 AM]
Plus the same thing occurs wih LPS that happens with HPS (worse probably): the lumens can't all be used by the human eye so 55W LPS is probably about as bright as a 125W merc or a 100W HPS. Still more efficient but the color is terrible. Surprised
Form109   [Apr 24, 2014 at 03:18 PM]
I read the comments and a valid question came to mind. How are lumens measured excactly. Question
streetlight98   [Apr 24, 2014 at 09:10 PM]
I think a lux meter or something is used. Whatever is used can't accurately represent the human eye's perception or HPS and LPS wouldn't have been labeled with such high lumen ratings... Don't get me wrong, even in visible lumens LPS is still by far the most efficient lighting source but it's not as efficient as the lamp's box says...
traffic light1   [Apr 24, 2014 at 10:42 PM]
HPS 70lm per watt, LPS-E [electronic ballast] 220lm per watt, LPS 180 to 190lm per watt.
streetlight98   [Apr 24, 2014 at 11:53 PM]
That's not what he asked though. HPS and LPS aren't truely as efficient as those ratings though because the human eye can't detect every lumen because the CRI is extremely low. The higher the CRI the more lumens can be use used by the human eye so the lamp is more "visually efficient".
Form109   [Apr 25, 2014 at 01:24 AM]
this is an intreasting topic. so Electrically a 250 Watt HPS puts out the lumens of a 400 Watt MV but it's less usable light? it's a tad confusing though because I know the CRI of a HPS lamp is a tiny bit higher than that of a Clear MV Lamp. but I know for sure things look more visable under clear MV.
streetlight98   [Apr 25, 2014 at 01:56 AM]
Yep in raw lumens, 250W HPS actually puts out MORE lumens than a coated 400W MV but a new 400W MV lamp looks brighter than 250W HPS. HPS and clear MV have about the same CRI but the human eye can detect light at the green end of the spectrum better than it can with light at the red end of the spectrum. Here's a cool experiment to try at home yourself: If you take two identical colored incandescent lamps (same maniufacturer, same wattage and voltage, and same lumen output, one red and one green, the red lamp will appear dimmer than the green lamp even though the lamps are identical. even if CRI and lumens are the same, a lamp with a greener glow will appear brighter than one with a redder glow.

Lamps are marketed with "raw lumens" which really has nothing to do with how the eye perceives light. So if we saw light in raw lumens, HPS would appear a lot brighter than it does to us. This is also why sky glow is more of an issue with HPS. The NASA instruments can pick up on more of the HPS light than we can because instruments see light in raw lumens, not perceived lumens like the human eye. CMH has a CRI of 90 and HPS has a CRI of 22-ish. 400W HPS is rated for 50000 lumens and 330W CMH (direct 400W MH replacement) is rated in the ballpack of 30000 lumens. And even though the CMH is much dimmer in raw lumens, it will appear just as bright as a 400W HPS because of the huge difference in CRI! It's really wild stuff and I don't know a whole heck of a lot about it but there's some basics.

And this brings up another topic, why are exit signs primarily red instead of green? Traditionally green means "go this way" and red means "stop, bad, do not enter, go another way". And fire is reddish. and the Human eye can see green light better than red so wouldn't it make sense to use GREEN exit signs? Green exit signs would back up the traditional "green means go, this is safe", green would contrast with fire better, and green light is more visible to the human eye. But red was used before all this stuff was known and everyone hates change so the familar red exit signs remain... I'll also add that green LEDs are much more efficient than red LEDs and we all know LEDs are all the craz for exit signs (though green exit signs actually use BLUE LEDs from what I heard!)
Form109   [Apr 25, 2014 at 04:09 PM]
i think the CRI of HPS is 25 & The CRI of a Clear Merc is 17. I Know I read that somewhere.

seems that when it comes to marketing lamps Raw Lumens matter less than they're made out to be. then again ive seen towns solely lit with lower wattage 100W HPS-175W MV fixtures and they seemed adequately lit.

in Fort Worth we have what test patches of LED and test patches of MH. not sure the wattage of the LED Fixtures but the MH AE 115's are 150 Watts & that 150 Watt MH definetly looks and does a better job than a similar 200/250 Watt HPS Fixture.
streetlight98   [Apr 25, 2014 at 09:15 PM]
I just checked online. clear MV is 20 CRI and HPS is 22 CRI. Yeah raw lumens isn't really an accurate way to market the lamps but I don't think they were fully aware there was a difference back in the 60s and 70s. Yeah MH is rated for far fewer lumens than HPS which makes it seem like a "Bad" lighting choice but really MH and HPS are about the same brightness to the human eyes and it's a lot easier to see under MH light. Really the only drawback of MH is life, not lumens, since MH appears just as bright to the human eye. Ceramic metal halide (CMH) lamps (which are pulse-start MH lamps with a ceramic arc tube i.e. a MH version of a HPS lamp) has a much longer life than standard quartz arc tube MH lamps and explosions are very rare. The life still isn't as long as HPS but lumens are great (i'd say they're brighter than HPS because they have 90 CRI to boot).

Yeah I'd like to see of CMH here but they're still all HPS-crazy. At least they're not going nuts with LEDs here. I saw a newly-relamped 100W MV and a 70W HPS light next to each other on the street and the 100W merc was brighter. with a new lamp, I'd say 100W MV is actually close to a 100W HPS. Not sure about 175W MV since we don't have any 150W HPS here (we never used 250W MV or 150W HPS in RI). A new 400W merc appears brighter than a 250W HPS but there aren't any recently relamped 400W mercs left here so they all seem dimmer than 250W HPS now.

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