 |
FILE 693/987 |  |
 |
 |
 |
|
|||
|
 |
||||||||
|
||||||||
|
| Lamp/Fixture Information | |
| Manufacturer: | The General Electric Company of England |
| Model Reference: | 280W SOI/H |
| Lamp | |
| Lamp Type: | Low Pressure Sodium |
| Filament/Radiator Type: | Dual U-shaped arc tubes |
| Base: | UX4 (British 4-pin valve) |
| Shape/Finish: | T65, clear |
| Service Life: | 6,000 hours |
| Burning Position: | Horizontal +/- 20° |
| Electrical | |
| Wattage: | 280 (2 x 140W) |
| Voltage: | 2 x 160V (2x 450V ignition) |
| Current: | 2 x 0.9A (2 x 0.81A starting current) |
| Optical | |
| Lumen Output: | 19,000 lm (@ 100h) / 16,800 lm (average) |
| Lumen Efficacy: | 67.9 lm/W (@ 100h) / 60 lm/W (average) |
| Colour Rendering Index: | Ra -44 |
| Physical/Production | |
| Dimensions: | 20¾ in (519 ±10 mm) |
| Factory Location: | Shaw, Oldham |
| Fabrication Date: | March 1959 (Date code QC) |
| Application/Use: | Street lighting |
| File information | |
| Filename: | GEC_280W_Dual_Arc_Tube_SOI-H_Lamp.jpg |
| Album name: | Ria / Low Pressure Sodium Lamps |
| Keywords: | Lamps |
| Filesize: | 218 KiB |
| Date added: | 26 Aug 2024 |
| Dimensions: | 2166 x 1202 pixels |
| Displayed: | 42 times |
| URL: | https://trad-lighting.net/gallery/displayimage.php?pid=380 |
| Favourites: | Add to Favourites |
Comment 1 to 5 of 5 Page: 1 |
|
|||
|
And as such will be treated with great care.!
|
|
|||
|
Very much honored to see this one lit when I visited, stunning piece this is.
|
|
|||
|
We are going to be commissioning a display case for him, as he deserves to be on show.
|
|
|||
|
Such rare lamp certainly deserves that.
|
|
|||
|
Watch this space
|
Comment 1 to 5 of 5 Page: 1 |
Forum
Gallery Home
Contact
Login
Off-Topic
Album list
Last uploads
Last comments
Most viewed
Top rated
My Favourites
Search![Osram-GEC 280W Dual Arc Tube SOI/H Lamp
Here is a very rare lamp indeed. It was unique to the GEC range of SOI/H lamps and consists of two separate 140W arc tubes in the same outer envelope. It was intended to give higher light output from existing 140W lanterns, but to run at full power, it required two ballasts and a change of lampholder, so for this and other reasons (fragility, weight, etc.) it didn't prove very popular, and was discontinued in 1969 after 10 years of production.
Lit pictures [url=https://trad-lighting.net/gallery/displayimage.php?album=5&pid=24][b]here[/b][/url]. Many thanks to Andy (Photonicinduction) for this lamp, which is believed to be one of, if not the only, fully working example left, certainly in collectors' hands..!
Sammi has named this wonderful lamp Hugo, after Sir Hugo Hirst of GEC.
Keywords: Lamps](albums/userpics/10002/5/normal_GEC_280W_Dual_Arc_Tube_SOI-H_Lamp.jpg "Click to view full size image
==============
Osram-GEC 280W Dual Arc Tube SOI/H Lamp
Here is a very rare lamp indeed. It was unique to the GEC range of SOI/H lamps and consists of two separate 140W arc tubes in the same outer envelope. It was intended to give higher light output from existing 140W lanterns, but to run at full power, it required two ballasts and a change of lampholder, so for this and other reasons (fragility, weight, etc.) it didn't prove very popular, and was discontinued in 1969 after 10 years of production.
Lit pictures [url=https://trad-lighting.net/gallery/displayimage.php?album=5&pid=24][b]here[/b][/url]. Many thanks to Andy (Photonicinduction) for this lamp, which is believed to be one of, if not the only, fully working example left, certainly in collectors' hands..!
Sammi has named this wonderful lamp Hugo, after Sir Hugo Hirst of GEC.
Keywords: Lamps")
