Installing LED downlight bulbs - problem

[Baxman]

I have just purchased some LED bulbs to replace the existing standard GU5.3 halogen downlights I have.

I have a dozen of these in two sets of six.

When I put one of the low energy LED's in it is fine, any more than that and the LED's do not light up. Tried all six but no avail. Also tried them both ways as aware there is a + and -

When I take out the bulbs again and only one LED left it is fine.

Suggestions/Solutions welcomed.

 

[electronicsuk]

Perhaps it's a problem with transformer loading - there is a minimum load requirement as well as a maximum, and will usually be written on the transformer/SMPSU. If you have a dimmer controlling the fittings then that will also be subject to similar minimum loading requirements.

Have you tried a standard halogen lamp in one fitting and then LEDs in the rest?

 

[riveralt]

Dont you need an LED driver for this arrangement?

 

[electronicsuk]

Dont you need an LED driver for this arrangement?

I've never seen an LED lamp with a GU5.3 base that needs a driver, it's usually incorporated into the lamp.

 

[riveralt]

Dont you need an LED driver for this arrangement?

I've never seen an LED lamp with a GU5.3 base that needs a driver, it's usually incorporated into the lamp.

Seems to be about 50-50 and of course makes a difference in the price.

http://www.surelight.com/Stella_MR16_GU-53_LED_downlights.htm
but one example.

As it says

'Note: Must be used with constant voltage LED driver, traditional halogen drivers may cause problems due to voltage fluctuation

 

[Baxman]

Been away for a few days hence delay in response.

Thanks for your tips, will look into the LED driver but I did try all combo's of LED and std halogen as I had that issue when I fitted LEDs upstairs and one std plus 5 LED's fixed it there.

Cheers
Baxman

 

[ban-all-sheds]

Funny how it seems to almost always be downlighters where people are trying to put LED and CFL lamps in - we don't seem to see anywhere near as many posts concerning other types of light.

I wonder why that is?

 

[electronicsuk]

I wonder why that is?

Probably because of the well known fact that they are an inefficient way to light a room. What they are, however, is far more aesthetically pleasing than a 5ft fluorescent is ever going to be. If they can be made as or more efficient than traditional forms of room lighting through the use of LED lamps, while retaining the aesthetics, then I applaud that.