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Philips Ceramalux C150S56 High Pressure Sodium Lamp Based on the Westinghouse equivalent, and before the ED28 rollout, this design is simple, rugged and with minimal welds. What came later pales in comparison. Keywords: Lamps

Philips Ceramalux C150S56 High Pressure Sodium Lamp


Based on the Westinghouse equivalent, and before the ED28 rollout, this design is simple, rugged and with minimal welds. What came later pales in comparison.

PL-C150S56-1_0.jpg KR-H38-4JA-C-O9-40-1.jpg WL-H38-4JA-W-X2-2.jpg H38-4MP-C-92.jpg WL-H38MP-100-N-46.jpg
Lamp/Fixture Information
Manufacturer:North American PHILIPS Lighting Corporation
Model Reference:C150S56 (S56SD-150)
Lamp
Lamp Type:High Pressure Sodium
Filament/Radiator Type:PCA
Base:Nickel Plated E39 (Mogul)
Shape/Finish:BT28
Service Life:24,000 Hrs +
Burning Position:Universal
Fixture
Ballast Type:S56
Electrical
Wattage:150W ~
Voltage:100V ~
Current:1.82A ~
Optical
Lumen Output:16,000 (Initial) / 14,400 (Average)
Lumen Efficacy:107 LPW (Initial) / 96 LPW (Average)
Colour Temperature:2,100K CCT ~
Colour Rendering Index:25% ~
Physical/Production
Factory Location:Bath, NY USA
Fabrication Date:12/88
File information
Filename:PL-C150S56-1_0.jpg
Album name:Cobrahead / High Pressure Sodium Lamps
Keywords:Lamps
Filesize:175 KiB
Date added:May 18, 2025
Dimensions:1104 x 708 pixels
Displayed:21 times
URL:https://trad-lighting.net/gallery/displayimage.php?pid=852
Favorites:Add to Favorites

Comment 1 to 2 of 2
Page: 1

Ria   [May 19, 2025 at 12:30 AM]
I love the BT bulb shape, I suppose it's because to us it's different, we never had them here HPS bulb HD
Cobrahead   [May 19, 2025 at 09:11 PM]
Even though I grew up with these, I still prefer them over any other HID lamp design.

Comment 1 to 2 of 2
Page: 1