GU10 LED Spotlights fading

[Electron]

I changed five MR16 Halogen lights for a customer in March to LED. Used Ledhut Fire Rated GU10 with 5.8W lamps. About a month ago three of the lamps were not very bright and one stopped working. I told Ledhut who sent replacements (the offer a five year guarantee) and I replaced them. Now the same problem is back. Asked Ledhut for advice but none forthcoming. Lamps are outside under deep eaves. The originals MR16's worked for 20 years with no problems. Any suggestions?

 

[Midwest]

I suspect water and or damp are getting into the lamps, just like my flipping deck lights, which are allegedly IP65 rated, yet I'm on my third set!

Edit; What's the IP rating for your cans?

 

[123]

Get some decent GU10 lamps, would recommend Enlite.

Never know of anyone to install a fire rated downlight into the soffit before

 

[Octopus]

I'd say you were very lucky that 20 year old transformers will drive LED's - or is there just one transformer?

 

[Leesparkykent]

I would touch anything LED hut sell with a barge-pole. I know someone who done their whole house in their dimmable GU10's and had nothing but dramas. Dimmers not dimming the lamps correctly, noticeable humming and all using dimmers that that LED hut claim are compatible. I would purchase some other brand of lamps.

 

[123]

I'd say you were very lucky that 20 year old transformers will drive LED's - or is there just one transformer?

He's fitted GU10's so the transformer(s) should be long gone

 

[Octopus]

He's fitted GU10's so the transformer(s) should be long gone

Oops, missed that rather important point...

Megamann would be my choice ..... not cheap, but only ever had 1 failure.

 

[Midwest]

I would touch anything LED hut sell with a barge-pole. I know someone who done their whole house in their dimmable GU10's and had nothing but dramas. Dimmers not dimming the lamps correctly, noticeable humming and all using dimmers that that LED hut claim are compatible. I would purchase some other brand of lamps.

I dunno, fitted some of their lamps nearly ten years ago in my house, still waiting for them to go u/s so I can't fit something a bit more modern.

 

[buzzlightyear]

I changed five MR16 Halogen lights for a customer in March to LED. Used Ledhut Fire Rated GU10 with 5.8W lamps. About a month ago three of the lamps were not very bright and one stopped working. I told Ledhut who sent replacements (the offer a five year guarantee) and I replaced them. Now the same problem is back. Asked Ledhut for advice but none forthcoming. Lamps are outside under deep eaves. The originals MR16's worked for 20 years with no problems

are their any led drivers in or normal transfomers

 

[ImpededLoop]

are their any led drivers in or normal transfomers

The LED's are GU10 Buzz, so mains voltage.

 

[Electron]

I suspect water and or damp are getting into the lamps, just like my flipping deck lights, which are allegedly IP65 rated, yet I'm on my third set!

Edit; What's the IP rating for your cans?

I agree it may be damp. But why were the previous MR16 lamps unaffected? Replacements are rated IP20.

 

[Electron]

Get some decent GU10 lamps, would recommend Enlite.

Never know of anyone to install a fire rated downlight into the soffit before

I am sure Enlite will work and I'll change them if necessary. Used Fire Rated as this is the basic spec. from Ledhut.

 

[123]

I dunno, fitted some of their lamps nearly ten years ago in my house, still waiting for them to go u/s so I can't fit something a bit more modern.

LED Hut wasn't trading until March 2011...

 

[Electron]

I'd say you were very lucky that 20 year old transformers will drive LED's - or is there just one transformer?

No transformers used with replacement GU10 lamps.

 

[Electron]

LED Hut wasn't trading until March 2011...

I bought them from Ledhut in March 2017. Don't know who made the previous ones,which were fitted about 20 years ago. I didn't fit these.

 

[Electron]

I would touch anything LED hut sell with a barge-pole. I know someone who done their whole house in their dimmable GU10's and had nothing but dramas. Dimmers not dimming the lamps correctly, noticeable humming and all using dimmers that that LED hut claim are compatible. I would purchase some other brand of lamps.

I have bought from them for some time and this is the only problem I have had. I buy V Pro Dimmers from them and they are fine.

 

[I2C]

LED lamps shouldn't "pop" (suddenly stop working) compared with other types of lamps, instead they usually fade over time and their life is heavily influenced by temperature. DigiKey states "The temperature to which the LED is subjected is a primary contributor to the rate of dislocation production. A hotter chip will form dislocations faster and hence fade quicker."

Presuming that the LED lamp you've chosen is of reasonable quality with a suitable IP rating and in a suitable enclosure, it's likely that temperature could be responsible as shown above. However it's possible that transients (surges) could also be responsible as the result of any large inductive loads, or even naturally occurring during electrical storms.

 

[Midwest]

I agree it may be damp. But why were the previous MR16 lamps unaffected? Replacements are rated IP20.

LED GU 10 lamps have a pcb and loads of other electrical wizardry, the MR16's don't. Where was the MR16 transformers located?

My deck lights I mentioned, went a bit dim and then u/s one by one. IP20 will do didley to prevent moisture affecting the lamps.

 

[Midwest]

LED Hut wasn't trading until March 2011...

-------s to you, you've ruined my story now I did say 'nearly ten years', time flies when your older.

 

[Rpa07]

That’ll be a BIG NO!

Nice website though - needed proof reading before activating but then if I wrote a website in mandarin, it would probably need a good look at!
I like the staff photos - I feel that I know them now!
Don’t tell SBO about the proof reading - he’ll be frothing at the mouth!