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Twistpak Conversion

Twistpak Conversion

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This pole used to hold a Powerlite Twistpak but they removed it and capped the top of the pole, installed a short arm and installed a 115. I'm guessing the Twistpak had a bad ballast but they were still made back in 2011 when this conversion occurred.

TOR_IMG_1191.JPG 20200624_20184828329.jpg 20200615_194230_HDR.jpg 20200615_192728.jpg

Light Information

Light Information

Manufacturer:American Electric Lighting
Model Reference:115
Lamp
Lamp Type:High pressure sodium
Electrical
Wattage:150w
Physical/Production
Fabrication Date:2011

File information

File information

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Filename:20200615_194230_HDR.jpg
Album name:joseph_125 / Outdoor Lighting
Keywords:Lanterns
File Size:907 KB
Date added:Jun 17, 2020
Dimensions:2464 x 1386 pixels
Displayed:80 times
Date Time:2020:06:17 18:43:32
DateTime Original:2020:06:15 19:42:30
Exposure Bias:0 EV
Exposure Time:1/181 sec
FNumber:f 1.8
Flash:No Flash
Focal length:4.42 mm
ISO:50
Make:LG Electronics
Model:LG-H831
Software:GIMP 2.10.8
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streetlight98
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Mike McCann


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Jun 23, 2020 at 06:41 PM Author: streetlight98
Hmm interesting they went through the effort to put a cobrahead on the pole rather than just install a new post top light. The pole seems rather high for a post top light though IMO. Looks about 20ft or so?

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joseph_125
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Jun 23, 2020 at 06:50 PM Author: joseph_125
Yeah, not sure why the poles were so tall, the Twistpaks really belong on a shorter pole. They did the same thing with the other 5-6 poles along this walkway too. All with the top capped off and a arm bolted to the side.

Ironically the tall poles makes the cobrahead setup look sort of like it was always like this.
streetlight98
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Mike McCann


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Jun 24, 2020 at 04:37 AM Author: streetlight98
I wonder if they were tall to deter vandals. But yeah the cobraheads looks good on these poles. Just strange they took the effort to change them all.

Please check out my newly-updated website! McCann Lighting Company is where my street light collection is displayed in detail.

sol
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Jun 24, 2020 at 04:59 AM Author: sol
They did the same thing at a bank here to change the parking lot light from MH to LED. The post top was not a twistpak, but of similar style only squarish instead of round, with either a 250W or 400W MH.
streetlight98
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Mike McCann


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Jun 24, 2020 at 02:59 PM Author: streetlight98
A cobrahead or similar horizontal light definitely would light a path or parking lot more efficiently than a post top. I wonder if they used a lower wattage cobrahead to replace the twist pack?

Please check out my newly-updated website! McCann Lighting Company is where my street light collection is displayed in detail.

joseph_125
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Jun 24, 2020 at 09:44 PM Author: joseph_125
Yeah I was thinking a post top at that height wasn't gonna light much to begin with. Too bad I don't remember what wattage were the old Twistpaks. I do remember a couple being damaged though.

I think the cobras are 70w HPS, the old Twistpaks might have been 100w HPS. These poles are from the mid 70s so they might have had a MV light at one point too.
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Jun 25, 2020 at 03:19 PM Author: Model25FanForever
Ive seen a handful of arms installed on twistpak poles here in Brampton.
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Jun 25, 2020 at 05:07 PM Author: joseph_125
Hmm interesting, were they on roads or over walkways?
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Jun 26, 2020 at 06:08 AM Author: Model25FanForever
It would have been roadways. IIRC one was in Peel Village area, and One somewhere around Mclaughlin Road and Flowertown. Ive recalled seeing them before. Il have to look around again to see. I think they might be gone now though with all the new LED installs.
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Jun 26, 2020 at 08:17 PM Author: joseph_125
Hmm yeah if you can get some pics that would be great.

BTW I double checked the wattage of these and it turns out they're 150w HPS. Kind of blows a hole in my theory that they were swapped to save energy too.

Kind of overkill IMO as the streetlights here were 100w HPS and now are something 50-70w LED.
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Jun 26, 2020 at 08:53 PM Author: streetlight98
Wow yeah 150w is overpoweringly bright for a little path. Perhaps the twist packs weren't bright enough.

Please check out my newly-updated website! McCann Lighting Company is where my street light collection is displayed in detail.

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