Spotlights in UPVC ceilings

[RichieG78]

Hi,

Is it OK to use 50w halogen spotlights in a UPVC ceiling?

Cheers

 

[Steve]

No it isnt. 50 watt spotlights get very very hot.

However, there are energy saving versions available that run cooler, and LED versions that run stone cold.

www.tlc-direct.co.uk

 

[RichieG78]

Thanks for the advice...

Would something like this be suitable?

http://www.tlc-direct.co.uk/Products/FLCFL100CH.html

Cheers

 

[Cremeegg]

Difficult to say without knowing exactly what your ceiling is. As stated before CFL like these run cooler but the front lens still gets prtetty hot - too hot to touch for long - and may spread this heat to the fitting. LED's run cold - no problem - but arent very good yet - but getting better - try again in ten years.

 

[Steve]

Thanks for the advice...

Would something like this be suitable?

http://www.tlc-direct.co.uk/Products/FLCFL100CH.html

Cheers

I note you went for the cheapo fitting I have the white ones of these, but they are very flimsy, and dont quite fit right in the old downlight holes, slightly smaller!

Do you have a sample of PVC to do a little test on?

It certainly wont catch fire, but over time it may discolour and/or warp.

 

[RichieG78]

As the 50w lights get so hot, do the 35w bulbs give off much less heat and therefore be more suitable?

 

[bernardgreen]

As the 50w lights get so hot, do the 35w bulbs give off much less heat and therefore be more suitable?

15 watts less heat,

35 watts in a small space can produce a temperature high enough to affect plastic. Worse is to melt it, next is to make it brittle ( evaporating the plasticisors from the plastic ) so it falls apar at the least touch and the least is often discolouring.

 

[RichieG78]

Thanks for the reply Bernard...

So it looks like low voltage is the best/only option.

Cheers