| 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 |
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