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[Closed] Home Electrics question...what transformer do I need for my kitchen spotlights?

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They're just old fashioned 12v spotlights. Over the last year, the transformer has gone from cutting itself out (presumably from overheating) to cutting out after the lights have been on for 10ish seconds to tripping the RCD when switched on.

I have unwired and removed the transformer but there is nothing on there to tell me what it is. It's completely devoid of any writing at all. Possibly, it had a label that was removed when they were installed (2 owners ago).

It's wired to a 240V lighting circuit, and then steps down to power three spotlights, all wired (again presumably) in parallel.

Can anyone tell me which one of these [url= http://www.screwfix.com/c/electrical-lighting/transformers/cat840844#category=cat840844&powervoltagesupply=12_240_v ]12-240V transformers on at screwfix[/url] I need to get?

TIA.


 
Posted : 08/12/2015 3:57 pm
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are you using 12v halogen bulbs? watt Wattage? (see watt I did there?)


 
Posted : 08/12/2015 3:59 pm
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Just taken one out - 12V - 20W Halogens.

They're the only lights in the house I can take out without being on a ladder. 😆


 
Posted : 08/12/2015 4:02 pm
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Possibly, it had a label that was [s]removed when they were installed (2 owners ago)[/s] burnt off by the overheating transformer.

Having seen the number of transformers with either melted cases or burnt cables that I took out of our house I would never have a 12v halogen in the house again - I'm amazed we didn't have a fire!
Is it possible for you to change to 240v LEDs and ditch the transformer completely?


 
Posted : 08/12/2015 4:08 pm
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They're the only lights in the house I can take out without being on a ladder

you have uplighters in your kitchen DD ?


 
Posted : 08/12/2015 4:12 pm
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Replace with 220v LEDs. GU10 fly leads are widely available. If you're comfortable with changing the transformer changing over to GU10 fly leads will be a doddle. If not, pay an electrician.


 
Posted : 08/12/2015 4:13 pm
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Picture of the light? Not sure where they're fitted.


 
Posted : 08/12/2015 4:14 pm
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Replace with mains 220v LEDs would be my advice after lots of pain


 
Posted : 08/12/2015 4:36 pm
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I would take the opportunity to replace the MR16 halogens with 240v GU10 LED as Murray says.

I like these Aurora ones
http://gb.auroralighting.com/Lighting-Products/Indoor-Luminaires/Downlighting/Standard-GU10-Downlights/Aurora-GU10-Adjustable-Lock-Ring-Aluminium-Lock-Ring-Downlight-1.aspx

with these LAP GU10s
http://www.screwfix.com/p/lap-gu10-led-lamps-281lm-4-2w-pack-of-6/9674d

Failing that if you really want to stick with earth-raping halogens (you will lose your Brizzle hippy credentials for doing so...) then this one http://www.screwfix.com/p/halolite-electronic-transformer-35-105va/39220 will cover the 60W total draw of your 3x bulbs.

According to reviews, it also has 3x outputs for simplicity too.


 
Posted : 08/12/2015 4:37 pm
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I did think of replacing with LEDs. Just thought it would be too much of a faffola.

From the screwfix site, can anyone tell me what I'd need for 3 led downlighters then?


 
Posted : 08/12/2015 4:40 pm
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Pic of one of the lights (yeah, I know, stylish)
[IMG] [/IMG]


 
Posted : 08/12/2015 4:44 pm
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We changed one recently, just went to the DIY shop and asked (in Paris, they had quite a selection FWIW)


 
Posted : 08/12/2015 4:46 pm
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And how the **** do I get these things out or will the LEDs fit in the same hole (held in on visible side with circlip type thing). Bear in mind, this whole structure may well be coming down next year so don't want to spend too much.

[IMG] [/IMG]


 
Posted : 08/12/2015 4:55 pm
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Same size. You're lucky to have easy access like that!


 
Posted : 08/12/2015 4:57 pm
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EDIT: [s]these would work. 3x with LAP LEDs for £18

http://www.screwfix.com/p/lap-fixed-led-downlight-kit-320lm-white-4-5w-240v-pack-of-3/98073

just needs a 64mm cut out.[/s]

Scratch that, dont like the look of the driver set up


 
Posted : 08/12/2015 4:57 pm
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here we go, cheap and cheerful, throw the bulb away, and fit those LAP GU10 LEDs I linked to earlier

http://www.screwfix.com/p/lap-fixed-round-mains-voltage-downlight-polished-chrome-240v/39914

56mm cut out.


 
Posted : 08/12/2015 5:01 pm
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Oh FFS, I've already ordered the bollocking thing. 😡

So the one you've linked means just running mains to each spotlight?


 
Posted : 08/12/2015 5:08 pm
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christ you're keen!

Well those ones that you ordered will be fine.

Yes, just run L&N to each unit.


 
Posted : 08/12/2015 5:10 pm