Trying to identify a very old household bulb?

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B0M0A0K

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I am trying to identify a very old florescent bulb that stopped working and I am looking to replace. Specifically I am interested in the likely voltage of this unit and I would like to replace it with an LED equivalent. The bulb is coated white and measures 61cm long by 3cm wide. It has sideways facing contacts for plugging it into the lighting mount which is the same length. The contacts are bigger than anything I have seen before and measure 11mm in diameter with a probe depth of 18mm.

I would be very grateful for any help.
 

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I think you are right. I can just make out a single filament running the length of the bulb. Any ideas about the voltages used. There are no markings on the bar and I would need to remove the housing appliance to get a multimeter on it?
 
I have not seen one of those fittings for many years, the last time I bought a lamp for one was back in the late 80's the wholesalers was well known for having lots of old stock even shelves of ¾ and inch conduit fittings
 
I've never seen the round peg type so every day is a school day. I've only seen the oval peg which was an s14s for the twin single-contact caps or s14d for the single oval dual-contact cap in the middle of the fitting. The oval peg lamps are still available in LED variants like Osram LEDInestra but I doubt they'd be interchangeable with the round peg fitting you have which I'm guessing is Cromptons own version.
The only reasonable option is to replace the fitting with something more modern and more energy efficient that will last probably 6 months rather than the 60 years the old fitting probably worked for.
 
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