I am constantly replacing bad units. I have some that start flickering after ...
596818
your lucky if these last a few months. I am constantly replacing bad units. I have some that start flickering after just a few weeks.
4416300
Of 5 bulbs in service over the last six months, one exploded while on and one other constantly flickers and then goes out. It seems to overheat. I would not suggest this brand of bulb and look for something else as I am now doing.
862670
I'm updating my review because these bulbs are starting to fail on me. One started to flicker and worsen over a week's time until it began flashing on and off randomly. That bulb had to be replaced. Now the other two are starting to flicker and I expect they will fail eventually as well. The package says they last 22 years. I was hoping to get at least 5 years out of it. I can't even get 6 months. I suggest trying another brand. I replaced the broken one with a Phillips LED bulb. We will see how that goes. It cost slightly more but hopefully it's made better.
2473515
So its official.  All 8 of the original 3-way switches and switches they were paired to that I installed 3 years ago have failed and I've had to replace them.  $320 down the drain just for the novelty of being able to turn the lights off and on on my phone and on a timer.  These start to click and flicker the light when they begin to fail.  Eventually the flickering gets so rapid and prolonged that you can't stand it anymore and have to replace it.  I've written to Nortek, formerly known as Linear, and they said they can't help me since the switches are out of the 1 year warranty.  For $40 these things better have at least a 5 year warranty and should last for 4 times that.  For those of you considering purchasing these, realize there is a very good chance you're going to be buying replacements in a few years.
2861195
I bought 2, but both of them flicker. I had to turn on once (flickers), and then turn off and then turn on again. Very annoying!!!
1456223
They flicker pretty bad, worse than the previous set of LED reverse lights I had before. Not sure if it's because of a problem with my trailer harness, because they also blink when a turn signal is on and get dimmer when the brakes are applied. Will report back if a new trailer harness fixes the problem. They're bright though.

EDIT: over time they have become so dim they're unusable. Do not purchase!
608817
I ordered this so that I could switch between my blu ray player and my computer on my computer monitor (Asus VE276Q). Most of the time it works great, switching when I power on one or the other. But then you have these incidents where the stupid thing flickers out as if the hdmi was unplugged.. All of this happens with me not even touching the unit. I'm not sure as to the reasoning it blacks out, I just know that when I'm in the middle of something on my computer, I want to break the damn thing.
1583306
Everything about these I thought was great, but now after not even a full year they're starting to randomly flicker.
3672742
I have found the failure rate to be much higher than hologen and many of them have an annoying flicker.
2096629
Have had these installed for a couple of months, suddenly they started to flicker and switch, due to interference from another source.  Cannot get them fixed so I am swapping them out for another brand that works better.
4325065
Light output is ok but they start flickering after a few months, I check all connections and nothing seems to be wrong.
1933918
These consistently fail and need to be replaced. I have compared them against other units that don't give false positives, and have had furnace specialists use sensitive equipment to test and confirm false readings. That said, my house came with these so I just have to keep replacing them every year because I don't want to replace the existing wiring harness in the ceiling.
2188113
I just bought these lights a couple of weeks ago and 1 of them is flickering badly. How do I get a replacement sent?
2305297
Not sure of the expected product life of these units but I seem to have to replace them more than I would expect.
3760102
I've been using this now for a week and just noticed as I was studying that the light is now flickering. I didn't change anything or move it in that week. I initially thought maybe the table was shaking as I was writing but I stopped and the flickering was still going on which is subtle but really annoying.

Updating this: I've used it for a a couple of months now and the flickering is more noticeable and annoying, sometimes turning it on/off helps other times nothing helps and I just end up turning it off.
4394662
1 of the bulbs has started to flicker and it is only 7 months old. have no way of getting hold of anyone to replace. led bulbs should last 10-20000 hrs. only way I know of getting someones attention is to do this review. If I am contacted and unit replaced i will revise this and if i am not you will know.
Revision the company contacted me and offered refund or replacement. Accepted offer.
1853068
I ordered a number of packs of these. Several of them were actually not 2700K and didn't match the others, and I returned those. Of the remaining ones, literally every single bulb has either burned out or begun constantly flickering within the first couple of months. And it's definitely the bulbs, because they do the same on other circuits/fixtures, and other bulbs moved into these fixtures work fine.