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cowboyro
Premium
join:2000-10-11
Shelton, CT

1 recommendation

reply to disconnected

Re: [RANT] Commercial Electric 4 in. Brushed Nickel Recessed LED

said by disconnected :

The box that the lamp comes in proudly states "25 year lifespan". To me, that means it should last 25 years, not 2 hours.

Yes, if you buy 1million such lights you will see that they average 25yrs life. Some will die after 1hr, some after 1 day, some after 1 yr and some may last 100yrs.
It's not a guaranteed life, it's an AVERAGE life.


disconnected

@snet.net
If I put on my engineering hat, yes, I agree, that's largely how MTBF is calculated--an average. But the lawyer side of me says a product ought to perform up to the advertised claims.