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Osram L40W/23 2ft 600mm

Osram L40W/23 2ft 600mm

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A couple of 40w two-foot 3500k (600mm) T12 lamps.
UK Ministry of Defence surplus.

These appear to be made by Philips.

Two-foot 40w lamps are quite unusual and rare these days.

In the UK during WW2, the 5ft 80w fluorescent lamp was developed so that it could be ran on control gear that was already in production and widely available, in this case, the 80w high-pressure mercury vapour choke. This was to save development time and cost during wartime. Later the 5ft lamp was re-rated to 65w and some lamps were suitable to be ran on 65w or 80w gear.

The 2ft 40w T12 lamps were developed so that two lamps could be ran in series on that same 80w MV choke and was widely used for streetlighting duties during the 1950's and 60's.
Doubtless these were carried in stock by the MOD because they still retain quite a lot of old fluorescent lanterns on their many bases scattered about the UK.

DPP00003305.JPG DPP00003307.JPG DPP00003105.JPG DPP00003104.JPG

Light Information

Light Information

Manufacturer:Osram
Model Reference:L40W/23-2 UK
Lamp
Lamp Type:MCF T12
Base:G13
Electrical
Wattage:40w
Optical
Color Temperature:3500k
Physical/Production
Dimensions:600 x 38mm
Factory Location:UK

File information

File information

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Filename:DPP00003105.JPG
Album name:FrontSideBus / Linear fluorescent
Keywords:Lamps
File Size:1875 KB
Date added:Mar 08, 2016
Dimensions:1920 x 1280 pixels
Displayed:114 times
Date Time:2016:03:08 15:08:37
DateTime Original:2016:03:08 10:26:41
Exposure Bias:1 EV
Exposure Time:5/10 sec
FNumber:f 11
Flash:No Flash
Focal length:55 mm
ISO:100
Make:Canon
Model:Canon EOS 70D
Software:Digital Photo Professional
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URL:https://www.lighting-gallery.net/gallery/displayimage.php?pos=-117845
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Al_M
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GEC Z9464 90w SOX/LPS


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Mar 08, 2016 at 03:43 PM Author: Al_M
I've ordered a box of these plus some of the Osram 90w SOX lamps from the same seller. I was thinking of getting a couple of the GEC 400w MBF/U's too but figured I'd hold off seeing as MBF/U's won't be banned here for some years yet.

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

FrontSideBus
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Mar 08, 2016 at 03:47 PM Author: FrontSideBus
I hope they are packed better for international travel than they did for in the UK!!!

UK out of the EU!
http://www.lighting-gallery.net/gallery/index.php?cat=11271

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