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Westinghouse Ceramalux/4, C250S50/DX4 250W Deluxe High Pressure Sodium Lamp There’s virtually no data available for this lamp, but what follows is what little is available: Around 1978, Westinghouse created and brought this lamp to market. (General Electric followed suit about two years later with their own version.) This lamp was the first US deluxe high pressure sodium lamp. It appears that it was discontinued sometime after the Philips take over in 1983. It also appears that this lamp was not a great seller. (Philips around 1988 reintroduced the DX lamp and called it by the “Comfort” branding.) Originally only sold in the 250-watt size, a 150-watt (100V/S56), and the 200-watt (S66) sizes were added later. Suggested retail price in 1980 is $71.00! Keywords: Lamps

Westinghouse Ceramalux/4, C250S50/DX4 250W Deluxe High Pressure Sodium Lamp


There’s virtually no data available for this lamp, but what follows is what little is available: Around 1978, Westinghouse created and brought this lamp to market. (General Electric followed suit about two years later with their own version.) This lamp was the first US deluxe high pressure sodium lamp. It appears that it was discontinued sometime after the Philips take over in 1983. It also appears that this lamp was not a great seller. (Philips around 1988 reintroduced the DX lamp and called it by the “Comfort” branding.) Originally only sold in the 250-watt size, a 150-watt (100V/S56), and the 200-watt (S66) sizes were added later.

Suggested retail price in 1980 is $71.00!

Osram_HCI-TC_70W_Shoplight.jpg HCI-PB_70_WDL_Shoplight.jpg WC-C250S50-DX4-72-1.jpg WC-C150S56-DX4-1.jpg PCA.jpg
Lamp/Fixture Information
Manufacturer:Westinghouse Electric Corporation
Model Reference:C250S50/DX4 (S50VA-250/DX)
Lamp
Lamp Type:High Pressure Sodium
Filament/Radiator Type:PCA (Poly Crystal Alumina)
Base:E39 (Mogul)
Shape/Finish:ET18
Service Life:10,000 Hrs
Burning Position:Universal
Fixture
Ballast Type:S50
Electrical
Wattage:250W ~
Voltage:100V ~
Current:3.00A ~
Optical
Lumen Output:25,000 (Initial) / 22,500 (Average)
Lumen Efficacy:100/90 LPW
Colour Temperature:2400K CCT ~
Colour Rendering Index:65% ~
Physical/Production
Factory Location:Bath, NY USA
Fabrication Date:7/82
File information
Filename:WC-C250S50-DX4-72-1.jpg
Album name:Eric / High Pressure Sodium Lamps
Keywords:Lamps
Filesize:414 KiB
Date added:10 Mar 2026
Dimensions:2048 x 1018 pixels
Displayed:29 times
URL:https://trad-lighting.net/gallery/displayimage.php?pid=1130
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Comment 1 to 2 of 2
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Max   [Tue 10 Mar 2026 at 21:11]
That was certainly not a cheap lamp. I can't imagine that its arc tube was that much more expensive to produce, so it looks like Westinghouse tried to increase their profits on what was a new lamp concept at the time...
BT25   [Sun 22 Mar 2026 at 21:19]
It would appear to be that way...

Comment 1 to 2 of 2
Page: 1