LED Lamp life

[Shaun]

Figures advertised by the lighting manufacturers state an average LED lamp lifespan of approx 50,000 hours. Mines failed after 700 hours. £180 to repair and replace. I wish I'd stuck with the discharge fixtures now.

Moan over. :zip:

[ukpartydj]

Are you sure it was the LED that went and not the solder?
I can't bear for a minute to believe that they'd possibly just guess at a figure without undertaking a 6 year experiment to ensure their claims are correct!

[Shaun]

I sent it back for repair, after testing it they've told me it needs a new LED and LED Charger? I could see the LED was on it's way it, during it's last few outings it gradually got dimmer and dimmer before failing completely.

[Nakatomi]

An average lifespan of X thousand hours, specified by the LED manufacturer is based on lots of assumptions. Assumptions that the LED isn't overdriven and is adequately cooled. There are no guarantees that any manufacturer is running their components within their limits. The other problem is that lifespans are often quoted as 'average' numbers. One lamp may last 100,000 hours and another lasts only 100. The average of that is.. 50050 hours.

I'd be disappointed too if a newish light fixture failed after such a short time though. This is more likely to be a production mishap than bad design though. Annoying, but these things happen.

[Shaun]

An average lifespan of X thousand hours, specified by the LED manufacturer is based on lots of assumptions. Assumptions that the LED isn't overdriven and is adequately cooled. There are no guarantees that any manufacturer is running their components within their limits. The other problem is that lifespans are often quoted as 'average' numbers. One lamp may last 100,000 hours and another lasts only 100. The average of that is.. 50050 hours.

I'd be disappointed too if a newish light fixture failed after such a short time though. This is more likely to be a production mishap than bad design though. Annoying, but these things happen.

Can't argue with any of that to be fair. I guess it's just disappointment on my part.

[Nakatomi]

Can't argue with any of that to be fair. I guess it's just disappointment on my part.

For what it's worth, the first time you can take it on the chin. Yeah it hurts but maybe it's just 'one of those things'. As with anything that fails not far out of a warranty period it's darn annoying.

If it happens again, even on a different light I think it might pay to investigate inside the unit. Maybe you'd be able to stop it happening in future :)

[Shaun]

For what it's worth, the first time you can take it on the chin.

It's the second time in 6 months it's been back for a repair (2 different faults)...and the third time altogether it's been back for repair. The first time I can take on the chin, after the third repair it seems more like poor build quality (or just extremely bad luck). For a 700 quid fixture, well looked after that's only about 3 year old, it's a few times too many for things going wrong.

[Nakatomi]

It's the second time in 6 months it's been back for a repair (2 different faults)...and the third time altogether it's been back for repair. The first time I can take on the chin, after the third repair it seems more like poor build quality (or just extremely bad luck). For a 700 quid fixture, well looked after that's only about 3 year old, it's a few times too many for things going wrong.

For a 700 quid fixture I'd *hope* it's just bad luck. Ouch!