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Sylvania H38-4HT (H38HT-100) 100W Clear Mercury Vapor Lamp After many years of searching, I finally found one of these! Keywords: Lamps

Sylvania H38-4HT (H38HT-100) 100W Clear Mercury Vapor Lamp

After many years of searching, I finally found one of these!

LR_uplighter_rendering.jpg DSCN9701.JPG SMV-H38-4HT-1.JPG SMV-H38BP-100-DX-2.JPG SMV-H33GL-400-DX_CLEAR_BANDER.JPG
Lamp/Fixture Information
Manufacturer:GTE-Sylvania
Model Reference:H38-4HT (H38HT-100)
Lamp
Lamp Type:Mercury Vapor
Filament/Radiator Type:Fused Quartz
Base:E39 (Mogul)
Shape/Finish:BT25
Service Life:24,000 Hrs (Rated)
Fixture
Ballast Type:H38-4
Electrical
Wattage:100W ~
Voltage:130V ~
Current:0.87A ~
Optical
Lumen Output:4,100 (Initial), 3,300 (Average)
Lumen Efficacy:41/33 LPW
Colour Temperature:5,700K ~ CCT
Colour Rendering Index:22% ~
Physical/Production
Factory Location:Manchester, NH USA
Fabrication Date:9/67
Application/Use:Street/Security
File information
Filename:SMV-H38-4HT-1.JPG
Album name:Cobrahead / Mercury Vapor Lamps
Keywords:Lamps
Filesize:389 KiB
Date added:Apr 22, 2025
Dimensions:1527 x 1050 pixels
Displayed:5 times
DateTime Original:2022:05:01 18:42:47
Software:Windows Photo Editor 10.0.10011.16384
URL:https://trad-lighting.net/gallery/displayimage.php?pid=774
Favorites:Add to Favorites

Comment 1 to 3 of 3
Page: 1

Ria   [Apr 22, 2025 at 09:49 PM]
The wrapper has seen better days (a bit like me..!)
BT25   [Apr 22, 2025 at 11:43 PM]
Yes, unfortunately! (That goes for both of us!)
Ria   [Apr 23, 2025 at 12:28 AM]
Clear MV lamps are always good, though Mercury Vapour Lamp

Comment 1 to 3 of 3
Page: 1