Best LED Dowblights

[Taylortwocities]

LEDs rarely, if ever, have unity power factor.

True, but there are now quite a number of LED drivers that achieve a power factor of 0.95.

Like these.

 

[JohnW2]

LEDs rarely, if ever, have unity power factor.

I presume that you are referring to "LED lamps" or "LED bulbs". I cannot see how a light-emitting diode could have a non-unity power factor.

It is, of course, important to use correct terminology. LED lamps do contain LEDs, just as switch-mode power supplies almost always contain transformers, but it is apparently wrong to be influenced by that.

Kind Regards, John

 

[winston1]

Indeed I was referring to LED lamps.

But LEDs are diodes and as such have capacitance. So I suppose with very low level AC, too low to forward bias them, they could show a low power factor.

 

[JohnW2]

Indeed I was referring to LED lamps.

Thanks for confirming.

But LEDs are diodes and as such have capacitance. So I suppose with very low level AC, too low to forward bias them, they could show a low power factor.

That's really nit-picking, given that they would never be used like that (since they would produce no light!) In normal operation (producing light!), I imagine that the capacitance would fade into total insignificance, and the PF would be as close to unity as made no difference.

Kind Regards, John

 

[winston1]

Indeed, but in normal operation they would be run on DC.

 

[JohnW2]

Indeed, but in normal operation they would be run on DC.

True - which means that the nit was being even more picked!

Kind Regards, John

 

[mikey2004]

Fittings: http://www.toolstation.com/shop/Lighting/p76299
Lamps: http://www.toolstation.com/shop/p80549

Avoid the integrated types, as when one fails in a year or three they won't be available any more and you then have a choice of having one odd one or replacing the entire lot.
Same applies to anything which uses non-standard lamp connectors, lamps with unusual lengths, custom LED modules specific to one type of fitting or anything else which is only available from a single manufacturer.

Are these suitable for bathrooms? If not what do you recommend?

 

[Taylortwocities]

Are these suitable for bathrooms? If not what do you recommend?

The spec says

• IP RatingIP20

So it depends on what zone the lights will be fitted in.

 

[mikey2004]

They do a IP65 version, but want some in brushed chrome, any other recommendations?

 

[Iggifer]

Satin nickel and brushed chrome are near enough the same thing. I think you'd be hard pushed to notice the difference unless you were really looking

http://www.toolstation.com/shop/Lig.../Enlite+IP65+Fire+Rated+GU10+Downlight/p88649

 

[stillp]

Are these suitable for bathrooms?

That depends on whether the manufacturer says they are, not just on the IP rating.