LED lamps not working after only 3 weeks

[flyingsparc]

Hello,


4 weeks ago I replaced 4 x halogen MR16and their transformers with 4 x LEDlite 4.9W MR16 lamps like this -4.9 Watt 38° High Power MR16 LED Lamp - Daylight White - V9


With each new lamp I fitted a newdimmable driver like this -Dimmable Driver for use with LEDlite MR16 LampsI know the lamps are non dimmable, and there is no dimmer fitted(just a standard plate switch) but thought its still a driver soshould be ok, right?


After advising my customer the longerlamp life etc of LED lamps (his flat is full of elv halogen recesseddown lights), and he was fed up with the expense of ongoingreplacement and maintenance work.


I got a call today to say that over thelast week or so, all 4 have stopped working.


The photo in the link for the driverdoes say 3W, I dont think I would have missed this, but I am going toto the flat tomorrow to check, but they are what I was told I neededat counter.


The only other thing I can think of isthat the info TLC provide for the lamps, its says -


“Use with existing Lv transformer,subject to transformer minimum wattage requirement)” blah blah, andthen “an LED Driver is not required”


Anyone else had problems like this, orcould offer any advice, just trying to understand what if anything Ihave done wrong.


Many thanks

 

[Octopus]

Always buy the lamps and transformers from the same place!

 

[flyingsparc]

I did, lamps and drivers both from same place.

 

[Octopus]

Or just junk the transformers and fit GU10 led's

 

[bugsy]

are the led lamps for use with existing transformers or DC drivers

- - - Updated - - -

Or just junk the transformers and fit GU10 led's

defeats the object

 

[bugsy]

just read the lamp spec - you cocked up with the drivers

 

[flyingsparc]

The lamp spec says use with existing transformers, I assumed (and perhaps wrongly) that having read lots of specs for LED mr16's that a lot of them can be run via transformers, but drivers have been developed for LEDs, and are DC, so they would be best suited. Really feeling like I should have kept transformers now, perhaps a big (and expensive) lesson learnt....maybe, will see what wholesalers say tomorrow.

If it is a c@~K up, I hope others can learn from this!

 

[dan86]

gonna be honest and admit I haven't read any of the replies, but from the subject, I thought you'd been using the lamps from this thread!

 

[flyingsparc]

Uhmmm, just looked at that thread, and came back here to see if any other post made, it is the first time I have used these ones from TLC, although I still don't know for sure that I have made a mistake here, we will see tomorrow, thanks for comments so far.

 

[TheDJ]

I,ll never understand why people use transformers or drivers . It's just one more thing that can go wrong. Just use gu10 LEDs , if lamp goes customer can pop to b&q and change it themselves.