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G.E.C 200w SLI/H

G.E.C 200w SLI/H

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NOS Linear sodium lamp.

IIRC, this was the first lamp to achieve over 100 lumens per watt.

Not as robust as Thorn's offering.

philips90wsoxplus.jpg Philips_55w_SOX_PSG.jpg DPP00003340.JPG Philips_135_SOX.jpg

Light Information

Light Information

Manufacturer:The General Electric Company of England
Model Reference:SLI/H 200
Lamp
Lamp Type:SLI/H
Base:G13
Electrical
Wattage:200w
Optical
Lumen Output:20,000lm
Color Temperature:1700k
Physical/Production
Dimensions:38 x 902mm
Factory Location:England
Fabrication Date:Date code QD March 1983

File information

File information

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Filename:DPP00003340.JPG
Album name:FrontSideBus / HID: Sodium vapour - Low pressure
Keywords:Lamps
File Size:1965 KB
Date added:Apr 24, 2013
Dimensions:1920 x 1280 pixels
Displayed:313 times
Date Time:2016:04:24 21:18:47
DateTime Original:2016:04:24 17:12:09
Exposure Bias:0 EV
Exposure Time:6/10 sec
FNumber:f 11
Flash:No Flash
Focal length:60 mm
ISO:100
Make:Canon
Model:Canon EOS 70D
Software:Digital Photo Professional
White Balance:0
URL:https://www.lighting-gallery.net/gallery/displayimage.php?pos=-78787
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Comments
rjluna2
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Robert


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Apr 24, 2013 at 11:46 AM Author: rjluna2
Lush

Pretty, please no more Chinese failure.

FrontSideBus
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Apr 24, 2013 at 02:24 PM Author: FrontSideBus
Yes indeed. These have a large quantity of xenon as the starter gas so the run-up will be lovely colours!

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dor123
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Apr 24, 2013 at 02:44 PM Author: dor123
This lamp have 99% neon, 0.8% argon and 0.2% xenon: http://www.lamptech.co.uk/Spec%20Sheets/Thorn%20SLI200HO.htm

I"m don't speak English well, and rely on online translating to write in this site.
Please forgive me if my choice of my words looks like offensive, while that isn't my intention.

I only working with the European date format (dd.mm.yyyy).

I lives in Israel, which is a 230-240V, 50hz country.

FrontSideBus
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Apr 24, 2013 at 06:18 PM Author: FrontSideBus
This is not a thorn. I've got a Thorn HO and starts up pink. These GEC ones start up light purple blue.

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Globe Collector
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Apr 24, 2013 at 06:58 PM Author: Globe Collector
This is the same as mine but I think mine is a lower power rating (140w). I accidently let it slide from the packet in a vertical position, the pins hit the floor and broke the seal and the getters went white. Needless to say I was really p***ed off with myself. Everytime I see a G.E.C. SOI-H it brings back this frustrating memory.
Here in Australia these ate now almost IMPOSSIBLE to find in any brand or form.

Manufactured articles should be made to be used, not made to be sold!

Fee, Fye, Fow, Fum, A dead man's eye and a parrot's BUM!

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GEC Z9464 90w SOX/LPS


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Apr 26, 2013 at 04:52 AM Author: Al_M
Andrew, were SLI/H's ever used here?

This lamp is beautiful and priceless

Traffic signals & street lighting engineer. Please bring SOX/LPS back Downunder!!

Globe Collector
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Apr 26, 2013 at 04:58 AM Author: Globe Collector
I have only ever seen them in use once at Comalco's Aluminium Smelter at Bell Bay. There wew about four or five of them in the sodaberg anode fabrication room up really high. I saw them in 1986, so I suspect that they are long gone now.
Can I ask how much this cot you Mark?
I know a British wholesaler has some left in stock, but I balked because of the low probability of getting one back here to Hobart intact.
The desire to replace my damaged one has not diminished though.

Manufactured articles should be made to be used, not made to be sold!

Fee, Fye, Fow, Fum, A dead man's eye and a parrot's BUM!

FrontSideBus
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Apr 26, 2013 at 07:39 AM Author: FrontSideBus
It was from that wholesaler and it was quite expensive
I had to have one though to go with my Thorn HO version. First one arrived smashed but I got a replacement shipped out the next day.

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Apr 27, 2013 at 03:59 AM Author: James
Andrew, the GEC lamps are pretty robust and much stronger than Thorn's later versions with clover-leaf section arc tube. I think you would stand a good chance of it arriving intact through the post. Lamp Co tend to pack their lamps really well especially if they know it is something rare going to a collector, the owner has his own small collection of historic lamps and appreciates the value of things like this. And in case it does break, in general they're pretty good about taking responsbility for their shipping.
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Brett Bielecki


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Jan 02, 2017 at 10:59 AM Author: subway5411
Looks like power groove
FrontSideBus
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Jan 02, 2017 at 11:04 AM Author: FrontSideBus
IIRC BTH Mazda and General Electric collaborated on developing fluorescent lamps with non circular cross sections with GE later introducing the Power Groove lamp and BTH using the technology for linear sodium lamps. So yes, the two are directly related!

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