| Lamp/Fixture Information |
| Manufacturer: | Westinghouse Electric Corporation |
| Model Reference: | H33GL-400/R (H33-1GL/R) |
| Lamp |
| Lamp Type: | Mercury Vapor |
| Filament/Radiator Type: | Fused Quartz |
| Base: | E39 (Mogul) |
| Shape/Finish: | BT37/Beauty-Lite |
| Service Life: | 24,000 Hrs + |
| Burning Position: | Universal |
| Fixture |
| Ballast Type: | H33-1 |
| Electrical |
| Wattage: | 400W ~ |
| Voltage: | 130V ~ |
| Current: | 3.25A ~ |
| Optical |
| Lumen Output: | 23,000 (Initial) / 16,700 (Average) |
| Lumen Efficacy: | 58/42 LPW |
| Colour Temperature: | 4000K CCT ~ |
| Colour Rendering Index: | 55% ~ |
| Physical/Production |
| Factory Location: | Bath, NY USA |
| Fabrication Date: | 7/76 |
| Application/Use: | Facility Interiors |
| File information |
| Filename: | WL-H33GL-400-R-76.jpg |
| Album name: | Eric / Mercury Vapor Lamps |
| Keywords: | Lamps |
| Filesize: | 506 KiB |
| Date added: | 01 May 2026 |
| Dimensions: | 2048 x 1377 pixels |
| Displayed: | 1 times |
| DateTime Original: | 2022:11:21 20:45:41 |
| Software: | Windows Photo Editor 10.0.10011.16384 |
| URL: | https://trad-lighting.net/gallery/displayimage.php?pid=1237 |
| Favourites: | Add to Favourites |