2014 manufacturing dates will cause your lights to flicker like a strobe due to supplier error.
593106
I purchased this because it seems like a great idea to modulate the power output rather than just an ON-OFF set-point like a normal space heater. Unfortunately, the modulation caused my house lights to flicker. Not just a slight flicker when turning it on and off, but a long duration flicker like a strobe light when running it on the LOW setting and also in the HIGH setting when the heater approached the set-point and ramped down the wattage. Wow - there was no way to use this heater with the lights on without barfing.

My home wiring is fairly new, checks OK and I tried it on different circuits. I was not running it on a GFCI or AHCI outlet. I contacted Vornado and the gentleman noted that it was not my home wiring, but a problem with the product; a supplier recently changed the design without their knowledge and that is responsible for the light flickering. He offered to exchange it for another model, but I returned it instead.
3904560
I was one of the unfortunate customers that had their lights blow out within the month. Was really hoping theyd work.
1359561
Very disappointed. The bulbs have a flicker that makes them unusable unless you want a headache. I was hoping LED technology was competitive, but this makes me wary of trying any time soon.
3607413
I ordered (2) FACTOP LED Bulb Lamp Light R7S 10W 42*5050 SMD 760-780lm 118mm 85-265V AC replacement for Halogen Flood Lamp Warm White on 9/6/14.  They have both been working well until last week 12/23/14 when one of them started acting like a strobe light, flashing really fast..  I swapped the bulbs between the 2 fixtures to rule out there being a issue with the fixture wiring and the same bulb is still was acting like a strobe light.. It seems there is no warranty or return on these bulbs after 30 days. I would not buy these bulbs ever again.
3461748
I purchased in February and one light is flickering. I need to exchange but there is no option. Now the second light completely quit working!!!!
1289937
I also CAN'T recommend these.  Delivered and install on Oct 10th, 2017.  1 was dead out of the package.  The rest lasted less than 30 days before they started to flicker.  These bulbs are located in areas that will surely draw unwanted attention. They are not worth the hassle or effort to return.  I be replacing them with a reputable brand
4630337
Installed in December.  Half of the LEDs were out by February.  Remaining LEDs flickering as of today.  The company builds their products with cheap, sub-par components!  Wouldn't recommend buying.
3568245
They go out sometimes and some of the diodes flicker now. Have been running them for over 6 months. However, they are very bright compared to incandescents.

Update July 7 2018 (7 months of ownership):
Changed review to 1 star.
Tried repeatedly to reinstall bulb and checked contacts. This was not the issue. I concluded that the LEDs are bad. Replaced with Sylvania LEDs which have a 12 month warranty and they are not flickering like these after 7 months of use. There is a quality issue with these LEDs and they are not worth the trouble.
253768
I purchased these Bulbs on 11/8/2017. Due to travel I installed the bulb on 11/24/2017. It started flickering on and off and as of 1/9/2018 the bulb is dead after less that 2 months of use. Because of ticket for no headlight must replace bulb as soon as possible. I have little choice but to repurchase seeing that prime will get me the bulb sooner than anyone else. I do understand that things do happen but this is quite unfortunate.
3506016
Initially all worked well, after 2 weeks the lights emitted a yellow line . I was going to send back but vendor sent me covers that fixed the issue. Now one of the light strips is flickering. Vendor : what can be done?
4140748
I installed these lights in September of this year. When installing, the first thing you notice is the wire that the specs state is 30" long is WAY short. I was lucky if they were over  8" long. The second thing I noticed was the outer case of the light was dented, dinged and rusted. Could not tell if this was shipping incurred or if they were used previously. Lastly, the mounting bracket is very thin and flimsy. By the time I had it installed, I needed to straighten out the bracket. Once installed, they seemed to work fine. It is now November 16th and they failed several days ago. It has not been three full months and they are flashing like a strobe light. The specs page states they have a year warranty. I have not been able to get a response from the seller to have them replaced. If the lifespan is only 1000 hours, the labor to replace them will negate any savings buying them cheap.
Save yourself the trouble and pay more for a better quality light.
2414951
I've only used this book light a handful of times since it was ordered a little over four months ago and recently two of the LEDs started flickering Yes, the batteries were new when installed and most of the time it sat in a locker at work. Amazon won't refund the purchase price since it is well past the refund window (30 days) date. At any rate, contrary to what has been said about the light, the two LEDs didn't last long and are noticeably dimmer than the other four. Typically when a LED light begins to flicker, it signifies the beginning of the end of the bulb. Now that's my $.02, please spend it wisely.
2848367
Well, I popped on the light in November 2015, convinced to upgrade from the Streamlight ProTac 2L I carried before.  Got the light and it worked great for a couple weeks.  However, the last few days, the light began flickering when in use, even when fully charged and just this morning it wouldn't turn on at all.  Am waiting to hear back from Olight Customer Service about a replacement.  Hopefully this is simply a bad apple in the bushel.  Olight's warranty says it will replace any light within five years of purchase, no questions asked.  I will update when I hear more.

UPDATE (1/11/16)

Contacted Olight Customer Support on 11/30/15, they believed that it was a faulty tailcap, and said they would be shipping a new one.  That was 43 days ago and I have not been able to get a response from Olight CS via email or over the phone since that time.  I'm beginning to think I'm out a $70 light.  Not sure if anyone else is having this issue with the light, but this is an absolute nightmare for me because spending that kind of money on a light is not something I can just do whimsically.  I am utterly disappointed with Olights Technical and Customer Support on this matter. And trust me, they aren't off the hook.  I'll be continuing to try to contact them until I can get a hold of someone to figure out just what in the hell is going on.'

UPDATE 1/14/2016

After finally receiving a new tailcap for the light, the light still doesn't work!  After finally getting Olight on the phone (it took 45 attempts) they are sending me an entire new light.  Maybe, by some miracle, this one will work.
3282317
Within 6 months all of these have burned out and have started flickering. I should have kept the stock lights, what a terrible company selling inferior products. Pay a little more for wualitu, until then I will have two lights that occasionally flicker with the rest burned out. How embarrassing!
1420185
<div id="video-block-R1OHMIQH7KZCG5" class="a-section a-spacing-small a-spacing-top-mini video-block"></div><input type="hidden" name="" value="https://images-na.ssl-images-amazon.com/images/I/81aErpEAEdS.mp4" class="video-url"><input type="hidden" name="" value="https://images-na.ssl-images-amazon.com/images/I/61t2Xbk6N0S.png" class="video-slate-img-url">&nbsp;Terrible lights they flicker see video
13633
DO NOT BUY - I would have given it zero start, but that's not an option. LED lights should last more than a couple of months.

Based on the generally good reviews, I purchased 3 of these in October - in time for Christmas - for outdoor party patio lighting.

One arrived quickly, the other two arrived about 2 weeks later (Amazon split the order). I'm not sure whether the two delivered later were from old stock, or were previously returned (because they seem to be out of stock now), but the first one WORKS LIKE A CHAMP - pull it in, it lights.

The other two starter flickering within 3-4 weeks AFTER THE insanely SHORT RETURN WINDOW (arrived Nov. 2, return window closed Nov 23), and now, only 3 months after purchase, these two are dead. Nada. Dark. And none in stock to replace them with.

OK - so I'm stuck with 2 out of three that are totally useless, a waste of money. So SAVE YOURS. But a different well light from a different supplier.
550508
60 days old installed in license plate sockets both bulbs flicker like a lightning storm is happening on the back of my car. Installed two more problem solved...will see how long the next two last?.