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Inside a LPS Crosswalk Sign Here's a shot of the 135w LPS lamp inside the LPS crosswalk signs used here. This is the shorter one too, there's a longer one with two 135w LPS lamps inside. Beacons are poly 12" Fortran heads with amber Dialight LEDs. As you can see they run these 24/7 on purpose...apparently it makes the sign more visible during the day. Keywords: American_Streetlights

Inside a LPS Crosswalk Sign

Here's a shot of the 135w LPS lamp inside the LPS crosswalk signs used here. This is the shorter one too, there's a longer one with two 135w LPS lamps inside.

Beacons are poly 12" Fortran heads with amber Dialight LEDs.

As you can see they run these 24/7 on purpose...apparently it makes the sign more visible during the day.

gol5192013_006.JPG DSC06172.JPG TOR_IMG_8276.JPG DSC01420~0.JPG DSC06769.jpg
File information
Filename:TOR_IMG_8276.JPG
Album name:joe_347V / Toronto Area Streetlights
Keywords:American_Streetlights
Wattage:135w
Lamp Type:Low pressure sodium
Filesize:82 KiB
Date added:May 26, 2013
Dimensions:1200 x 1800 pixels
Displayed:247 times
Color Space:sRGB
DateTime Original:2013:05:25 12:50:52
Exposure Bias:0 EV
Exposure Mode:0
Exposure Program:Program
Exposure Time:1/250 sec
FNumber:f/10
Flash:No Flash
Focal length:55 mm
ISO:100
Make:Canon
Model:Canon EOS REBEL T3
URL:http://www.galleryoflights.org/mb/gallery/displayimage.php?pid=15813
Favorites:Add to Favorites

Comment 1 to 10 of 10
Page: 1

streetlight98   [May 26, 2013 at 03:56 AM]
won't the LPS lamp suffer from running 24/7 like an HID would?
BULB FREAK   [May 26, 2013 at 11:22 AM]
nope u can bern a SOX lamp 247 if u want wont harm it(BTW the lamps a 135W SOX if it was 180W the end wood be round) Smile
joe_347V   [May 26, 2013 at 07:46 PM]
I think only quartz MH is not recommended for 24/7 operation.
rjluna2   [May 26, 2013 at 08:55 PM]
Cool profile, Joe Cool

I can stand there all day getting retina burned into my eye from that burning bulb Very Happy
joe_347V   [May 27, 2013 at 12:40 AM]
Thanks, these are quite common in Toronto but in the suburbs they're being replaced with mid-block traffic signals.
joe_347V   [Dec 17, 2017 at 02:30 AM]
I wonder what's the plan with these after 2020 after Philips discontinues the last of the LPS lamps. I'm guessing some sort of LED, hopefully they use yellow ones to keep the caution yellow lighting. I've seen some privately owned ones get retrofitted with 6500K LEDs though.
streetlight98   [Dec 18, 2017 at 02:31 AM]
If they think like RIDOT they'll just let them dayburn until they burn out and then either just leave them dead or replace them with LEDs or diamond grade signs months after they burn out lol.
joe_347V   [Jul 03, 2019 at 04:44 AM]
Well, I noticed one these signs the other day that received an LED retrofit. I guess it was inevitable with the production of LPS lamps ending in the next year. I do wish they used amber LEDs instead of your typical 4000K white LED. The old LPS lights made for good caution yellow effect over the crosswalk.
Model25FanForever   [Jul 04, 2019 at 03:58 AM]
Agh too bad, lighting is getting more and more boring nowadays. Everything is going full LED Sad Laughing
xmaslightguy   [Jul 04, 2019 at 05:35 PM]
Cool sign light ... or atleast it was until the LED'ed it.

Comment 1 to 10 of 10
Page: 1
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