Wiring a transfortmer to a 3-pin plug for lights

Hi there,

I know a bit about electrics but only basic DIY stuff. So, just wanted to check the following:

Have 2 x 20W halogen Ikea lights that mount on top of wardrobes. The built in transformer plugs were previously cut off and wired into a transformer that was wired into a lighting circuit so that they came on with the lights.

I have now removed 2 of these lights from a total of 4 to another room and would like to connect them up again.
My thoughts are to
a) buy this http://www.toolstation.com/shop/Lig...ronic+Transformer+12v+105w/d220/sd2638/p67666 transformer (the 12v 105W one)
b) wire one end to a 3-pin plug - it seems the transformer does not have an earth - assume it's double insulated? Also, what wire would I need?
c) wire other end of transformer into junction box where the 4 cables of the lights are wired into.

Main questions relate to b) above so would appreciate your thoughts.

Thanks big time in advance.
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aarondown said:

I have now removed 2 of these lights from a total of 4 to another room and would like to connect them up again

Click to expand...

This bit I dont understand. Makes no sense.

What are you planning to do with these lights?

There are currently 4 of these lights mounted to wardrobe tops, connected into a junction box, then into a transformer and finally into the lighting circuit.

We are moving half of the wardrobes and so I have un-wired 2 of the lights and left the other 2 as they were previously.

Essentially I want to replicate the same setup in the other room but terminating in a 3 pin plug rather than the lighting circuit.

Hope this clarifies.

OK the plan you describe sounds fine - use twin flex for the mains suppy. Fix the Tx to the top of the wardrobes.

Use a junction box with strain relief.

aarondown said:

(the 12v 105W one)

Click to expand...

Why the 105W model when you only have 40W of lights?

Steve,

Thanks a lot. Ordered and on it's way!

Ban-all-sheds,
In case I want to add more lights in the future.

Do you know what its minimum load is?