Powerlite Guide

[joe_347V]

Check it out here.

The list is in chronological order so the earlier 50's models are first and the last Powerlite designed lumes from the 90's are in the end.


Sections:
Tip: use the find (Ctrl-F) function and the section code to quickly skip within of the pictorial guide

1. [PWR 1]
1959 and prior Powerlite fixtures.

2. [PWR 2]
1960s - 1970s Powerlite fixtures

3. [PWR 3]
1970s - 1980s Powerlite fixtures

4. [PWR 4]
1990s - 2000 Powerlite fixtures

5. [PWR 5]
Other Powerlite Fixtures

6. [PWR 6]
Speculative Powerlite Fixtures

7. [PWR 7]
Powerlite Label Variations

8. [PWR 8]
Guide Version History and Credits


[PWR 1] Section 1:
1959 and Prior Powerlite Fixtures


The earliest known Powerlite fixtures are of the gumball design which was introduced during the post war era. These lumes had no mounting provision for a internal ballast as so were mostly used with incandescent lamps. Later on during the rise of mercury some were converted to use mercury vapour lamps by replacing the incandescent lamp with a mercury lamps and wiring in a external ballast...easily identified by the "paint can" mounted near where the mounting arm meets the pole. Metal poles could also be outfitted with a transformer base to conceal the ballast for a cleaner appearance.  In addition "post top" ballasts which hung inside a pole and NEMA head ballasts used to retrofit a NEMA head (typically a gumball or teardrop at the time) to mercury were also introduced. Mercury lamps were more efficient than incandescent lamps but the blue-green colour of the commonly used clear lamps proved unpopular to some. At the time coated or colour corrected mercury lamps (which had better colour rendering) were still too expensive to be commonly used for streetlighting.


"Gumball" Unknown model number gumball luminaire, designed for main roads, and early freeways.. The head conforms to NEMA specifications and uses a latch on Holophane refractor. The refractor latches on and off for relamping...I'm not sure if hinged refractor versions were available. Used incandescent lamps but could use mercury lamps when paired with a suitable remote ballast or with a NEMA ballast fitted.


"Mini Gumball" Unknown model number mini gumball luminaire designed for residential streets. Used either incandescent or mercury lamps when paired with a remote ballast up to 100w. Interestingly they use a medium base instead of the common for streetlighting mogul base. Also as shown in Niall's picture the refractor opens up for relamping in a very unique way. Note that the pictured example has a "paint can" external ballast installed so it could use 100w mercury lamps.  Shares the same Holophane No. 4030 glass as a Joslyn mini gumball.

"Small Clamshell" This was a small sized clamshell luminaire. It used 100-250w mercury lamps. Not much is known about this luminaire aside from the face that is shares the same glass refractor as the B2217, Joslyn MV111 and MV121.



[PWR 2] Section 2:
1960s-1970s Powerlite fixtures

Around the 1960s the hassle and labour costs from wiring an external ballast led to the introduction of fixtures with provision for mounting an internal ballast. A common style fixture like this was known as a cobrahead named for their cobralike appearance when on a mounting arm. Powerlite came out with their first generation of cobrahead roadway fixtures and their version of the popular area light the GE Powr/Bracket which was known as the "Private Eye".

Powerlite B2217, a small sized cobrahead that was introduced around the 1960's or so, it used up to 250w mercury lamps. I know of a few that have been retrofitted to sodium in my area along with some mercury ones along the mid 60s sections (stations between Keele and Woodbine, both on the tracks and in the bus terminals) of the Bloor-Danforth subway in Toronto. I have also been told that some sodium retrofits also exist near the Acton area.

Parts to look for: small size, long slender body, streamlined door. The squared refractor is also a unique characteristic to this lume.


Powerlite B2215, a relatively large medium sized cobrahead that used up to 400w lamps? Was introduced sometime during the 1960s and I guess was originally fitted with mercury lamps but I've seen ones that are presumably retrofitted to HPS. Thanks to Dave for ID'ing this for me. They're not that commonly found nowadays, I only know of some in parking lots and some retrofitted ones in the Kitchener area.

Parts to look for: streamlined torpedo like body, pointed nose, diamond patterns on refractor, slightly chubbier than the other Powerlite cobras of this era.


Powerlite B2218, a huge cobrahead that used up to 1kW lamps. This is the biggest Powerlite luminaire (it's around 4 foot long) and I'm guessing it was introduced sometime during the 1960s and was made at least through to the 1970s. It appears to use it's own unique refractor pattern.  They used to be quite common along 1960s MTO freeways like along the 401 in Toronto prior to reconstruction with HPS highmasts. I'm not aware if they were ever used for on arterial roads though. They are still found in some older parking lots...particularly 60s era strip mall lots. Most of the ones I've seen in parking lots still sport their original MV lamps but I've seen the odd sodium converted one too.   

Parts to look for: large size of luminaire (compared to other luminaires), large refractor, long streamlined body, and slightly blunt nose.
 

Powerlite "Private Eye", a power bracket style HID area luminaire that was introduced during the mid 1960s and redesigned some time after. It was used mainly as dusk to dawn security lighting in rural areas. These are still occasionally found in rural areas and often still use mercury lamps. (pic from Darren)


Fluorescent streetlight These luminaires are pretty rare nowadays as most places replaced fluorescent streetlights years ago. The six foot model is shown but a four foot variant also also made. They were designed to use 4-6ft HO or PG17 lamps. As far as I know they were rarely used for parking lots but they used to be used along some arterial roads and expressways in Toronto, especially ones built by the former Metro Toronto. From what I could tell from the archive pictures, The Allen and Gardiner expressways both had them along with the Don Valley Parkway. In addition the 4 foot version was used on parts of Carlton street, Lakeshore boulevard, and Lawrence avenue.


Fluorescent Railing Light Another rare Powerlite luminaire. The only known installation of these were the ramps and merges on the elevated portion of the Gardiner Expressway in Toronto. The vast majority of these luminaires have been removed and replaced with solid railings and only a small number of these remain on the westbound Jarvis Street off ramp. Those are no longer function but provide a glimpse into this strange Powerlite luminaire.

All of the cobrahead luminaires were fitted with a provision for mounting an integral photocontroller receptacle but the larger two luminaires tended to be installed in locations that had group switching and are so rare to see with a photocontroller receptacle.

[joe_347V]

[PWR 3] Section 3:
1970s-1980s Powerlite fixtures

Around this time Powerlite Devices Limited was acquired by GTE Sylvania Canada and around the mid 1970s the fixtures had Sylvania co-branded with Powerlite. By the late 1970s the fixtures were branded only with Sylvania on the tag. Powerlite branding that was cast into the fixture still remained. The first generation of cobraheads was replaced with the more compact second generation and new fixture designs such as the TwistPak, SignLite, Modular Luminaire, and SpherePak was also introduced. Also this is when Powerlite first added a option to outfit fixtures for sodium lamps instead of mercury lamps. Sodium lamps were more energy efficient than mercury at the expense of colour rendering. As such they increased in popularity after the two oil and energy crises increased energy costs.


Powerlite B2227, (or the Sylvania R37) a small sized cobrahead that I THINK was introduced during the 1970's and used up to 250w lamps. They used either mercury vapour or sodium lamps depending on what the customer ordered. It later became the Sylvania R37 when Powerlite Devices was bought out by GTE Sylvania. These are still relatively common around the Toronto area but most have either been converted or were ordered as sodium fixtures. Mercury examples like the one in the picture are very rarely seen. 

Parts to look for: small "GE-like" appearance, centre mounted PC, Powerlite logo on bottom door, and sprung clip door keeper.


Powerlite B2255/B2228 "Twindor", a medium-large sized twin door cobrahead that was introduced in the early 1970's (it was patented in 1971) and used up to 400w lamps but a 1kW version that accepted BT56 lamps was made (see note below). It used either mercury vapour, metal halide or sodium lamps. It has a similar appearance to a GE M400-A2 or a M-400 split door cobrahead but the refractor on the Powerlite is larger than GEs and the B2255 is usually unpainted, while the GEs were painted light gray. The ballast was either mounted in the top housing of the luminaire or mounted on the rear removable ballast door with a power disconnect connector. The luminaire itself was also available in a full cut off / flat glass lens instead of the traditional dropped lens. (Pic from Darren)

The B2228 is a variant of the B2255 designed for use with 1kW BT-56 lamps. It has the lampholder recessed into the reflector instead of mounted flush within the reflector to accommodate the larger BT-56 lamp. Aside from this they look virtuall identical to the B2255.

This is also a common fixture around the Toronto area, particularly in the suburbs. Like the B2227, all examples on the street today are use sodium lamps either factory or rebuilt. Example of grey painted rebuilt ones can be seen in the Scarborough area. A small number of mercury versions exist in parking lots and in smaller towns.

Parts to look for: large and chubby refractor, PC mounted near back of lume, Powerlite logo on rear ballast door, and no latch for rear door...only a screw keeps it shut.


Powerlite MEF-10 "SignLite", a smallish floodlight that was introduced in the mid 1970s (patented 1974) and was intended for overhead freeway sign illumination as well as billboard/sign lighting, known to have used either 125w mercury or 70w sodium lamps but most likely more types and/or wattages of lamps were used.  This particular one has a Cat# of MEF-10-125-MTC. These have more or less been removed since the MTO discontinued sign lighting in the late 80s but a few disconnected ones are left on the sign gantry mainly around the QEW and in some parts of Hamilton.

Parts to look for: small boxy shape, bare finish, two screw latches on side facing road, Powerlite logo if viewed from the top, off centre lamp. 


Powerlite "Twistpak", a post top luminaire that used up to 250w lamps. The pictured example is integrated into the pole but the regular posttop version is more commonly seen. The separate model  continues production as the American Electric Twistpak, one of the few Powerlite designed lumes still made. (pic from Niall)

There are a few older suburban streets with these still in use and Toronto might still be using them in city parks.

Parts to look for: spaceship like appearance, long and tapered ballast compartment, generally bare finish, centre mounted PC.

Notes: The B2255 might have been made through part of 1990s and it's very possible that the other designs were at least made through the early 1990s.

There where two different ballast mounting configurations for the B2255, it could have been door mounted that disconnected when the rear door was opened like a GE Powr/Door (although GE Powr/Doors didn't auto disconnect). Or it could have been mounted in the top housing without the quick disconnect like a GE split door cobra. As far as we know there are NO external differences to differentiate between the two unlike the GEs.

The Twistpak was made all the way up to the acquisition of Powerlite in 1998 and continues production as the American Electric Twistpak.


Modular Luminaire a track mounted set of fixtures that used ~175w mercury lamps, one of the applications of this was lighting up gas pump islands.


Sylvania Powerlite "shoebox" fixture, a medium sized "shoebox" fixture that used a B2255 drop refractor and seen with up to 400w lamps. I'm not sure what the model # of this is though.


[PWR 4] Section 4:
1990s-2000 Powerlite fixtures

GTE Sylvania owned Powerlite until July-August of 1993 shortly after the accquistion of GTE Sylvania by Osram who later renamed the lamp division Osram Sylvania. The fixture division was sold off. Powerlite was sold off to a company known as the Kaufel Group. The 90s saw the introduction of two small sized cobraheads the R47 and later the R7 both of which were largely used with sodium lamps instead of the traditional mercury vapour lamps. In fact around this time many cities in Ontario were changing out the old mercury fixtures to sodium and one common fixture used to replace the old mercury lights was the R47.


Sylvania-Powerlite R47, a small sized cobrahead that was introduced in 1992 (date from the instruction sheet) and used up to 400w HPS lamps or 250w mercury lamps. This luminaire was also available in a full cut off / flat glass lens configuration instead of the traditional dropped lens. Not sure when this was made until, I've seen them go up as late as 2002-2003.

Parts to look for: angular door, PC mounted near rear of lume, sprung clip door keeper.


Sylvania-Powerlite R7, a small sized cobrahead that I think was introduced during the early to mid 1990s and used up to 250w 400w lamps. The Powerlite product page linked above also calls the R7 a "RoadKat". This lume features a updated slipfitter design as well as a modernized appearance.

Parts to look for: more streamlined door, and mounting bosses for slipfitter screws on the top.

Description from Powerlite website:
"Our new R7 RoadKat is one of our latest highly efficient and low profile luminaires to come out of our new plant. Its optical assembly makes it the ideal choice for roadways and parking lots which require different light levels in a rugged luminaire-available up to 400 W in HIOH [sic] Pressure Sodium, Metal Halide or Mercury vapour."

In 1998 The parent company of Powerlite, the Kaufel Group was accquired by Thomas and Betts and most of the Powerlite models here were eventually phased out. As far as I know, only the Twistpak design is still made to this day.


[PWR 5] Section 5:
Other Powerlite fixtures


Powerlite "Private Eye", a Powr-Bracket style HID area luminaire that was introduced during the mid 1960s and redesigned later. It was used mainly as dusk to dawn security lighting in rural areas. (pic from Niall)



Unknown Powerlite post top luminaire, this could possibly be a Powerlite "Spherepak" luminaire?


Unknown Powerlite parking lot luminaire, uses the same refractor as the B2255. I'm assuming this used up to 1kW MV lamps.

Powerlite "Wallpak-2" A wall mounted outdoor fixture, not much is known since I only have this about it.



There was also a B2214 "New Little Giant" which was a small fixture that used up to 300w med. base incandescents or 125w mercs. I can't find any more info about both of these other than the name and model though but I speculate it might be this 125w Powerlite luminaire.


[PWR 6] Section 6:
Speculative Powerlite Fixtures

Finally, here's a list of some unidentified Powerlite luminaires that I have guessed their model # and name based on how they look and from the above documents:

If you have any more information on these or any other Powerlite luminaire(s), please feel free to reply below or to PM me. I'd love to find out more about Powerlite lumes and the company.



[PWR8] Section 7:
Powerlite Label Variations

Throughout the years, Powerlite came up with a number of designs to their labels. The labels merely had the Powerlite name at first but as time went on they added more information to them such as voltage, wattage, model no., manufacture date...etc. Following is a list of the different label variations used by Powerlite.


[UNDER CONSTRUCTION]



[PWR8] Section 8:
Version History and Credits

Updates:

12-28-10
First version.

12-30-10
Added Private Eye Pic and description.

01-02-11
Added additional Private Eye pic, minor spelling/grammar corrections.

01-26-11
I found some more pages on Powerlite as well as a archived copy of the Powerlite webpage, so I rewrote the intro and updated the R7 entry.

03-17-11
Long time since my last update, found out the boxy lume is actually a Skyline Skylight lume, also made some minor edits. 

03-21-11
Thanks to Dave for ID'ing the B2215 for me (the bid unknown 60s era Powerlite). Also rewrote the B2215's entry. 

04-29-11
Added links to pictures and made some minor edits.

07-03-11
Added B2213 entry.

07-21-11
Fixed up some stuff and split the guide from the info links to make it easier to read.
Added a couple entries too.

08-09-11
Split guide up into sections for easier navigation.

08-11-11
Added entry for the shoebox fixture.

08-24-11

Updated Powerlite B2255 entry in light of Niall's recent pics.

10-22-11

Added distinguishing features for the cobras.

11-12-11

Replaced some of the pics with better ones.

01-22-12
Added entry for the fluorescent streetlight and updated pic for the SpherePak

02-23-12
Added entry for Powerlite Gumball

03-13-12
Added entry for mini gumball, and Modular Luminaire. Also added short intros to each section.

07-14-12
Updated picture for the B2213

09-03-12
Added entry for the round parking lot light and started section on label variations.

11-23-12
Split guide into two posts because of the character limit, also reserved a third post for future use. Minor edits to text. 

05-12-20
Updated some stuff, revised B2213 to B2218 and included the B2228 as a variant of the B2255. Also added in the fluorescent railing and clamshell luminaires

Thanks to Darren (litelover) and Niall (Gailgrove) for letting me use their pics as part of this guide as well as Darren, Niall, Dave, and Vince for providing me with additional information.

[joe_347V]

Reserved Part 3

[xmaslightguy]

Nice work joe_347V

[joe_347V]

Thanks! Unfortunately since I never found any literature, there's still a lot of missing parts. Maybe when the libraries around here reopen, I'll see if they have any old Powerlite literature available. I found some info on older Canadian fluorescent fixtures from the library.