Photo Gallery

Home > User galleries > Cobrahead > High Pressure Sodium Lamps
Return to the thumbnail page FILE 178/691 Return to start See previous file See next file Skip to end
Westinghouse Ceramalux/4 C150S56/DX4 Deluxe High Pressure Sodium Lamp Imagine my surprise when I came across this! Keywords: Lamps

Westinghouse Ceramalux/4 C150S56/DX4 Deluxe High Pressure Sodium Lamp

Imagine my surprise when I came across this!

DSCN9703~0.JPG Falida_HIE250.jpg WC-C150S56-DX4-1.jpg Lit-Unlit.jpg 20231118_104558.jpg
Lamp/Fixture Information
Manufacturer:Westinghouse Electric Corporation
Model Reference:C150S56/DX4 (ANSI Code: S56SD-150/DX)
Lamp
Lamp Type:High Pressure Sodium
Filament/Radiator Type:Polycrystal Alumina (PCA)
Base:E39 (Mogul)
Shape/Finish:BT28
Service Life:7,500 Hrs.
Burning Position:Universal
Fixture
Ballast Type:S56 (USA)
Electrical
Wattage:150W ~
Voltage:100V ~
Current:1.82A ~
Optical
Lumen Output:13,600 (Initial), 12,240 (Average)
Lumen Efficacy:91/82 LPW
Colour Temperature:2,200K ~
Colour Rendering Index:65% ~
Physical/Production
Factory Location:Bath, NY USA
Fabrication Date:1/82
Application/Use:Where better color rendering is desired.
File information
Filename:WC-C150S56-DX4-1.jpg
Album name:Cobrahead / High Pressure Sodium Lamps
Keywords:Lamps
Filesize:446 KiB
Date added:Mar 29, 2025
Dimensions:2048 x 1188 pixels
Displayed:22 times
URL:https://trad-lighting.net/gallery/displayimage.php?pid=720
Favorites:Add to Favorites

Comment 1 to 6 of 6
Page: 1

Max   [Apr 24, 2025 at 02:25 PM]
Really nice! This is even rarer than the 400 W variant.
Cobrahead   [Apr 24, 2025 at 06:28 PM]
Correct! When I found this, I didn't hesitate one second! Mind Blown
347vPowerlite   [Apr 24, 2025 at 11:38 PM]
Oh wow, I didn't know a 150w /S56 version of this was made. At least I think this is the first time I've seen a picture of one.
Cobrahead   [Apr 25, 2025 at 02:37 AM]
Westinghouse made the 250W/S50 first...then a 150W/S56 and 200W/S66 were added later. Between the last two, I'm not sure who came first.
Sammi   [Apr 25, 2025 at 07:34 PM]
And I suppose you've got all three.? Laughing
Cobrahead   [Apr 25, 2025 at 08:25 PM]
No, don't have the 200W...yet! (My chances are near zero.)

Comment 1 to 6 of 6
Page: 1