Installing Light Fitting

[ekmdgrf]

You don't need to buy a dimmer, you can just use the light undimmed.

 

[flameport]

Is this correct that we need to buy a Next halogen compatible dimmer, or can we buy a third party dimmer?

The dimmer needs to be compatible with the transformer in the light fitting.
If Next supply such a thing, then get that one - assuming you believe that they actually know what is compatible with what.

However if the transformer has the word 'eaglerise' on it, then the only course of action is to remove the transformer, throw it away, and fit a decent one.

Or as already suggested, it is obvious that the ceiling in your house is far too low to accommodate such a light fitting, therefore returning it and obtaining something smaller would be the better plan.

 

[spiidey]

You don't need to buy a dimmer, you can just use the light undimmed.

Given the light has dimmer capability, we want to be able to utilise that.

 

[spiidey]

Is this correct that we need to buy a Next halogen compatible dimmer, or can we buy a third party dimmer?

The dimmer needs to be compatible with the transformer in the light fitting.
If Next supply such a thing, then get that one - assuming you believe that they actually know what is compatible with what.

However if the transformer has the word 'eaglerise' on it, then the only course of action is to remove the transformer, throw it away, and fit a decent one.

Or as already suggested, it is obvious that the ceiling in your house is far too low to accommodate such a light fitting, therefore returning it and obtaining something smaller would be the better plan.

Yes Next do supply such a thing therefore could purchase one from there - e.g.

http://www.next.co.uk/g39704s7#473695g39

However, are there other third party dimmer switches that would be compatible with the transformer that don't cost £28? If so, how do we identify compatibility?

Re the "eaglerise" thing:-


1. Where will we find the word "eaglerise" on the transformer (if it is indeed on there)?

2. If it does have the word "eaglerise" on it, why is the only course of action to throw it away?

3. You say we need to get a decent transformer. What kind are those and how do we ensure they are compatible with the light fitting?


Whilst the ceiling in our house is relatively low, we can put the light fitting directly above the coffee table and shorten the chain from 8 links to 1 link which provides us with a suitable workaround.

 

[spiidey]

Anyone able to help with this?

 

[RF Lighting]

The switch is just a varilite touch dimmer.

You might as well leave the tranny the fitting comes with in until it blows up (which it will) and then replace it. You might get a years use out of it for nothing.

 

[spiidey]

Posted wrong place.

 

[ban-all-sheds]

What did you do in the end about having bought a light on a chain which you couldn't actually use on a chain?

 

[sparkwright]

Deleted.

Bloody hell, an old thread.

 

[spiidey]

FINALLY got product installed today by electrician - see pic below.

However, when the product is in operation, the transformer makes this high pitched, constant, sound which isn't overly loud but is definitely noticeable in a quiet room.

Why does it do this / is this normal? We have similar products (also purchased from Next - see second pic below) and these also have a transformer but don't make any sound.

 

[ban-all-sheds]

when the product is in operation, the transformer makes this high pitched, constant, sound which isn't overly loud but is definitely noticeable in a quiet room.

if the transformer has the word 'eaglerise' on it, then the only course of action is to remove the transformer, throw it away, and fit a decent one.

 

[securespark]

Eaglerise are indeed shoite.

But Aurora are not and they do loads of trannies that will swap them out.

https://www.google.co.uk/search?q=a...a=X&ei=ff8JVa-uCcmz7gbN6YCoCg&ved=0CAYQ_AUoAQ

 

[bernardgreen]

However, when the product is in operation, the transformer makes this high pitched, constant, sound which isn't overly loud but is definitely noticeable in a quiet room.

The "transformer" is a switched mode power supply unit SMPSU. It operates at around 40,000 Hz. a real transformer operates at 50 Hz, real transformers can hum but not whistle. Good transformers don't even hum.

You probably can't hear the 40,000 Hz tone but if there is another SMPSU involved ( like a dimmer ) and that is operating at 41,000 Hz then a beat note that is the difference can be produced, that is an irritating 1,000 Hz sound, There is another beat note that is the sum of the two at 81,000 Hz but humans can't hear that. Depending what is actually rattling around ( vibrating) in the SMPSU to convert the electrical whistle into sound waves the whistle you hear may have all sorts of harmonics and other distortions imposed on it.

 

[ban-all-sheds]

You probably can't hear the 40,000 Hz tone but if there is another SMPSU involved ( like a dimmer )

How many dimmers are SMPSUs?

 

[bernardgreen]

How many dimmers are SMPSUs?

Some dimmers are purely resistive. These were often used to keep the stage electrician's meat pies hot. Very large,

Some are variable transformers ( the magnetic type )

Some chop bits out of the mains wave form.

A few do use pulse width modulation to create a near perfect sine wave form but with a variable RMS value.