buying replacement LED drivers and kitchen LEDs in general

[Mike.. . . .]

I need to replace some of these:-

"

"I'm finding references to them on web, but so far no UK retail seller. My local electrical shop said "contact the place you bought them"..... if I only knew where!

anybody happen to know companies to try for these "HEP LED driver LFVC4AZ UNI". (I have emailed HEP German branch)

As a more general point I reckon maybe these failed because of high moisture..steam? (the two nearest the sink have gone, but there's no sign of moisture inside the units). LEDs seem to last forever but not the drivers!

[Dave Plowman (News)]

"

"> I'm finding references to them on web, but so far no UK retail seller.

Have you tried for an equivalant based on the spec?

[Mike.. . . .]

not yet, as its fitted inside a smallish unit and it will be easiest if I can get a direct replacement than takes the pins on the lamp units. But it might be a possibility that a single driver unit might power all the LEDS from a concealed space in the cupboards?

will try google for just the spec

[Andrew Gabriel]

350mA is the standard drive current for 1W LEDs. That PSU can drive between 1 and 4 LEDs in series. How many LEDs is it driving?

CPC and Rapid both do LED drivers (you need a constant current driver, not a constant voltage driver). Probably something like one of these:

As a more general point I reckon maybe these failed because of high

More likely related to heat - could be too close to the LEDs or other heat source, or too near to thermal insulation. Alternatively, it could be that they contain a low quality part, or were not good designs - postmortem analysis would be required to show if this is the case.

[NT]

If it turns out to be heat, its possible to add heatsinking and case ventilation, and thus massively increase life expectancy,

NT

[Adam Aglionby]

Being a current driver you can mount them in a dryer cooler position and run the lines to the LEDs without too much concern on voltage drop on the cables.

Cheers Adam

[Mike.. . . .]

3 LEDS to each driver

[Mike.. . . .]

I think the answer lies in the above somewhere, probably a poor design so good money after bad applies? I think external driver is the answer, I see prices are much less than when I bought these units and am looking at LED strips replacement now. Anybody tried these in a kitchen? (LEDs on self adhesive strip with a single driver hidden away somewhere).