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Ken-Rad H39-22KB (H39KB-175) Long-Life 175W Mercury Vapor Lamp Ken-Rad lamps, a brand of Westinghouse from 1946, until circa 1970. Prior to 1946, Ken-Rad (Kentucky Radio Corp.) as an independent manufacturer made electronic vacuum tubes and light bulbs. That year, the company was split in two parts and sold off - lamps to Westinghouse, and tubes to General Electric. Both companies continued to use the Ken-Rad brand. It appears that Westinghouse dropped in first, sometime in the early 70's. Keywords: Lamps

Ken-Rad H39-22KB (H39KB-175) Long-Life 175W Mercury Vapor Lamp

Ken-Rad lamps, a brand of Westinghouse from 1946, until circa 1970.
Prior to 1946, Ken-Rad (Kentucky Radio Corp.) as an independent manufacturer made electronic vacuum tubes and light bulbs. That year, the company was split in two parts and sold off - lamps to Westinghouse, and tubes to General Electric. Both companies continued to use the Ken-Rad brand. It appears that Westinghouse dropped in first, sometime in the early 70's.

EI-M70-PAR36-L-1_0.jpg W-MH1500-BU.jpg KR-H39-22KB-37.jpg WEC-OV-15-H39-22-CWA-1.jpg EI-M150PAR36-L1-1_0.jpg
Lamp/Fixture Information
Manufacturer:Westinghouse Electric Corporation
Model Reference:H39-22KB (H39KB-175)
Lamp
Lamp Type:Mercury Vapor
Filament/Radiator Type:Fused Quartz
Base:E39 (Mogul)
Shape/Finish:BT28
Service Life:24,000 Hrs +
Burning Position:Universal
Fixture
Ballast Type:H39-22
Electrical
Wattage:175W ~
Voltage:130V ~
Current:1.73A ~
Optical
Lumen Output:7,900 (Initial) / 7,400 (Average)
Lumen Efficacy:45 (Initial) /42 (Average)
Colour Temperature:5700K CCT ~
Colour Rendering Index:22%
Physical/Production
Factory Location:Bath, NY USA
Fabrication Date:3/67
Application/Use:Residential Streets & Security
File information
Filename:KR-H39-22KB-37.jpg
Album name:Eric / Mercury Vapor Lamps
Keywords:Lamps
Filesize:398 KiB
Date added:06 May 2026
Dimensions:1473 x 1050 pixels
Displayed:183 times
DateTime Original:2022:10:18 20:15:44
URL:https://trad-lighting.net/gallery/displayimage.php?pid=1177
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