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Westinghouse 'Instant Restrike' Twin Arc 50W HPS Lamp Here is a nice example of a twin-arc HPS lamp from Westinghouse. The date code is the Philips format so I'm assuming it was after Philips took control but before they changed the name on the lamps. Keywords: Lamps

Westinghouse 'Instant Restrike' Twin Arc 50W HPS Lamp


Here is a nice example of a twin-arc HPS lamp from Westinghouse. The date code is the Philips format so I'm assuming it was after Philips took control but before they changed the name on the lamps.

20200207_161755.jpg Westinghouse_Twin_Arc_50W_HPS_Lamp.jpg GEC_Solarcolour_120W_Clear_HPS_Lamp.jpg 20190910_184111.jpg 20190910_183327.jpg
Lamp/Fixture Information
Manufacturer:Westinghouse (Philips)
Model Reference:LU50/IRS
Lamp
Lamp Type:High Pressure Sodium
Filament/Radiator Type:2 x PCA Arc Tubes
Base:E39 (Mogul)
Shape/Finish:ED23½ / Clear
Service Life:24,000 hours
Burning Position:Universal
Fixture
Ballast Type:S68
Electrical
Wattage:55 (measured 45 on test)
Current:1.1A measured
Physical/Production
Factory Location:Bath NY, USA
Fabrication Date:October 2005 (Date code K5)
File information
Filename:Westinghouse_Twin_Arc_50W_HPS_Lamp.jpg
Album name:Ria / High Pressure Sodium Lamps
Keywords:Lamps
Filesize:630 KiB
Date added:07 Mar 2026
Dimensions:3071 x 2171 pixels
Displayed:10 times
URL:https://trad-lighting.net/gallery/displayimage.php?pid=1124
Favourites:Add to Favourites

Comment 1 to 4 of 4
Page: 1

Max   [Sat 07 Mar 2026 at 19:27]
That's an interesting one. Westinghouse-branded lamps in later years (1990s and later) are considered "fake" because Philips stopped using that brand after 1983 (they only used the mention "Westinghouse lamp" till 1985 or so). What we have here is an ironic case of whoever licensed/bought the Westinghouse brand (not Philips) outsourced this lamp from Philips and put back the Westinghouse logo on it.
Ria   [Sat 07 Mar 2026 at 19:33]
Interesting, thanks for the info, Max.
BT25   [Sun 08 Mar 2026 at 06:48]
@Max - Angelo Brothers Company, AKA ABCO, bought the licensing rights to the Westinghouse brand. It's kind of hilarious that these lamps were made in the old Westinghouse plant in Bath, NY.
Max   [Sun 08 Mar 2026 at 08:14]
Thanks Eric, I wasn't sure who owned that brand for lamps. It's really funny that a "fake" Westinghouse lamp would come from the very place where the original ones were made...

An interesting detail is the service life still rated at 24 kh despite the use of two arc tubes.

Comment 1 to 4 of 4
Page: 1