IET logo
 
IET
Decrease font size
Increase font size
Topic Title: Source for Wotan Spot Lamps, 50W, 12V.
Topic Summary: Obsolete?
Created On: 10 August 2014 03:02 PM
Status: Post and Reply
Linear : Threading : Single : Branch
Search Topic Search Topic
Topic Tools Topic Tools
View similar topics View similar topics
View topic in raw text format. Print this topic.
 10 August 2014 03:02 PM
User is offline View Users Profile Print this message



Jaymack

Posts: 5270
Joined: 07 April 2004

For a very large country house owned by a London based organisation up here in Scotland, I have got enquiries out for lamp replacements; there are many of these lamps in fittings in a large banqueting hall. Rather than replacing all the fittings over a period, I'd prefer to have the original lamps if available.

The lamps are Wotan make, halo spot types, 50W, 12V with an SBC connection; they are about 70mm diameter by 45mm high; Part number is 41990 - SP. I suspect a link with Osram though.

Incidentally, this 200 year old house is set in 10,000 acres, and the non-resident owners were having a ball last night, for the start of the grouse season on the 12th, Downton Abbey would be the gate lodge!

http://i563.photobucket.com/al...ntwithcentreshade.jpg

http://i563.photobucket.com/al...ack12/Lampfromrear.jpg
 10 August 2014 03:46 PM
User is offline View Users Profile Print this message



Zoomup

Posts: 2496
Joined: 20 February 2014

Have you tried CPC the electrical Farnell related company?

Whoopps I jumped the gun. I have just seen your images. They look very special to me and probably are obsolete now.
 10 August 2014 04:37 PM
User is offline View Users Profile Print this message



prophet

Posts: 336
Joined: 09 October 2011

 10 August 2014 05:46 PM
User is offline View Users Profile Print this message



Jaymack

Posts: 5270
Joined: 07 April 2004

Originally posted by: prophet
Tom

You've won a coconut!, many thanks. Lifetime is 3000 hours, perhaps I'll seek an alternative or try dimming as a trial.

Regards
 10 August 2014 08:09 PM
User is offline View Users Profile Print this message



prophet

Posts: 336
Joined: 09 October 2011

Ah grand!

Tom
 11 August 2014 06:28 PM
User is offline View Users Profile Print this message



weirdbeard

Posts: 2436
Joined: 26 September 2011

Originally posted by: Jaymack



Incidentally, this 200 year old house is set in 10,000 acres, and the non-resident owners were having a ball last night, for the start of the grouse season on the 12th, Downton Abbey would be the gate lodge!



I'm with Zoomup - the lamps sound obselete - the fittings have had it, don't forget to tell them building regs require everything to be LED £££££

-------------------------
 17 September 2015 11:30 PM
User is offline View Users Profile Print this message



mapj1

Posts: 7496
Joined: 22 July 2004

under run them 10% and limit inrush, and they'll go for ever.
note this graph
http://www.lamptech.co.uk/Documents/IN%20Voltage.htm
and be aware that actually the eye is a logrithmic detector, and while 20% light loss for 5% voltage loss may seem dramatic, its only easily detected if you have before and after either side by side, or in rapid succession. also note that this is why continental lamps, really design centered for 220v, have such short and unhappy lives on our 230 which is often nearer 245.

-------------------------
regards Mike
 19 September 2015 02:47 PM
User is offline View Users Profile Print this message



allaway

Posts: 203
Joined: 08 July 2007

Originally posted by: mapj1

... succession. also note that this is why continental lamps, really design centered for 220v, have such short and unhappy lives on our 230 which is often nearer 245.


The major manufacturers still produce two versions of a lot of lamps - 230v and 240v with the former being a fraction cheaper. Unfortunately a lot of on-line retailers do not understand and get the cheaper (230v) version to sell in the UK.
Statistics

See Also:



FuseTalk Standard Edition v3.2 - © 1999-2016 FuseTalk Inc. All rights reserved.

..