Bought these November 2016. Two of the 10 are ...
589072
Bought these November 2016.  Two of the 10 are flickering and have to be replaced.  Cannot find a way to contact the seller.  DO NOT BUY THESE.  They do not last.  They are a scam to get your money.
1301501
I bought six of these less than two years ago and one went bad today. I know they only have a one year warranty, but buyer beware, they may not last much beyond the warranty...
3360284
Got them in November and 2 no longer work at all and 1 will charge my phone about 50% over night.  It does come with 5, but I am running out of replacements now.  Will spend a bit more next time.
1314577
After about 4-6 months the circuitry starts to go and one of the five will start to flicker and eventually go out.  I had this happen on over half of the 10.  I would not get them again.
3757341
4 of the 6 in this pack stopped working after 10 months of moderate use (4-8 hours per day). Traditional incandescent bulbs have always lasted in the same two light fixtures for more than a year. For the price difference this is not worth it.  I had previously purchased a 6-pack of TCP brand LED bulbs - all still working.  Can't recommend this brand.
2347207
Bought 2 in the past year and a half. The 1st one went out in half a year, the second one in a year. I thought the first time was a fluke, so I gave it another shot... never again
3318489
We ordered 5 of these in December 2011 (about 9 months ago)  So far, 1 has completely stopped working and 2 have only one the lights working.  I have emailed Cooper to see if they may be under warranty.  I only assume the others are on their way out also.  However, for 6 months the sensor seemed to work well!  We enjoyed the dusk to dawn feature.
2983021
Bought 10 of these 11/16/2014. Love the light color and brightness. One quit working on 11/20/2015. Not worth the hassle of return for just one bulb yet, will wait and see if more go out since shipping cost could nullify savings. If the others hold up my rating will probably rise. Sorry that I am skeptical about CFL's and LED's since this green initiative has cost my pocket book hundreds of dollars the past 10 years in bulb change outs.

Update, 04/26/2016  another has gone out.
68877
Received at the end of January 2016. As of today, 2 of the 4 no longer work. It just keeps buzzing non-stop unless we turn the unit off.
141395
They are a great price - so I bought few. Unfortunately, two (2) have stopped working within a couple months of use.
2690695
One rec'd Nov 10th is still doing its job
One rec'd Jan 19th died Feb 7th...Not too sure about buying another one
3550927
I've bought in December, 2010 and the left year is not working. I have to shake it, squeeze it or beat it to hear something. And I have to do it all the time.
3045268
I bought two in March 2012, but didn't install until 2 months ago.  Now one is broken (totally unfunctional).  Since I have another one remains working, I'll buy another one regardless to keep consistent for the two door garage.  BTW, the real finish of the product looks far less attractive than the picture.
1599994
I have purchased many of these as gifts over the years.
this last group has 3 of the five going bad, switch issues, within a week of me giving them out.
I would strongly suggest that shoppers look at other options
2689582
Purchased it December 26 2015 and July 06 2016 it started to work intermittently. So in the span of six months (I do not count the last few days of December and first few of July as months and neither should you) it began to malfunction.

I understand that when buying these kind of things at this price you run the risk of it not working well or even at all but where is the quality control here. Currently Seeking and RMA, will see how it goes.
3177198
Last year I purchased 6 of these bulbs.  11 months later and 1 out of the 6 is still functioning.
1557182
I bought these for my boyfriend in October of 2016, and he loved them. But one headphone is already going out, and he has been having a ton of issues with charging them. He's extremely careful with all of his computer stuff as well. I really regret spending $150 for them to go out in less than a year.