On arrival the red light was defective; it worked ...
921267
On arrival the red light was defective; it worked intermittently with the lens off and not at all with the lens on.
3530905
I had recently ordered this item after having ordered it once prior. The first time it had worked perfectly, however, this particular time I had run into an issue, particularly with the charger.

Upon connecting a battery to the charger, and plugging it into the outlet, a red light began to shine on the unit. My original did not display red, at least not normally. I left it alone, assuming that the blue LED inside the unit was damaged, and returned in about an hour. upon removing the unit, I noticed a strong metallic burning smell, and it was coming from the charger. It appears to have broken, perhaps having shorted out.

I know this product works rather well, as I had purchased one about a year ago and it's still going strong, but I cannot say i'm too happy with the overall build quality of the unit, especially if it came out of the box damaged.
141475
Mine arrived promptly and worked fine--for about five minutes.  Then the LED light flickered and went dark.  No amount of fiddling or changing batteries, etc. could get it to flicker even.  I suspect a failure of the LED or its tiny circuit board, but who knows...  Based on other ratings & reviews, I would say that this sort of failure is rare, but I wanted to let people know that it's possible, and could indicate manufacturing problems.  I was also disappointed that amazon did not offer prompt replacement as a return option for a failed product--only a refund (in 2-3 days).
556822
The battery was dead on arrival and failed to charge. I had the battery tested and it was confirmed that it was a bad unit. I had to purchase both a new battery and a new charger. The light seems to work well now that the battery issue has been solved.
677223
Defective. Didn't work at all as soon as it was opened.
2432980
When I first received the light, it didn't work. Pressing the power button was hit or miss on actually firing it on and the lights would flicker on and off without even touching the light (not flashing, but turn off, then light up for a moment before going back off). I was all set on giving up and returning it.

The seller contacted me to check on how I like the light. I told them I was about to return it, and the reason why. They quickly replaced the defective light. The new light works perfectly.

Is a little larger than I had originally expected, but it's a good size. It is plastic, but that's to be expected. I'm quite happy with the light. I'm even more impressed with the customer service.
632206
In the dark, I see a red dot but it doesn't illuminate anything.  So someone could locate me in the dark but otherwise useless.  Maybe the batteries were just weak on arrival, but still defective as far as I'm concerned.
539115
I received the product in a timely manner. Upon opening it, I was pleased at the appearance. It appeared to be well made and sturdy. I followed the instructions to completely charge the unit the first time using the USB port. It appeared to charge fully but upon testing the unit it would not charge any device I plugged into it. It would not even operate the supplied lamps or LED flashlight. I am sure that I received a defective unit but was not going to take a chance since I needed it for a backpacking trip. I instead ordered a similar unit different brand.
4913459
I should have known better, it arrived and the light doesn't work.
2545444
Paid one day expedited shipping and received the product on time. However upon opening the packet and trying it, only the green light was working. Some reviews say that it takes a little time for red to show up so I let it wait for 2 hrs but still no go. I would probably have liked the product if both lights were working but I am disappointed with the lack of attention to the quality of the item being shipped. I wanted to try a replacement but it was unavailable. Long story short, it didn't work out for me.
674369
Dead on arrival. The red light will turn on but won't light up any of the EL wires I have.
2256714
The blinking red light works well however the front light didn't work despite trying out different batteries.
2471074
I ordered two of these lights, one black and one white.  The black one worked; the white one didn't (the motion sensor feature did not work) and obviously had a loose connection inside the light, since it flickered when shaken.  Rather than deal with the hassle of a return, I ordered a 3rd light (white color) and it worked.  So overall, 2/3 worked for me.
3152353
but I'm sure it's no big deal and the manufacturer can fix it without much trouble.  Fault light came on from the first time it was powered up.  So something must be shorted causing the fault condition... which limits voltage from being applied to the output.  Thank goodness for Amazon returns and their quick, fair, and easy return policy.
2347898
Good:Item arrived timely.  Bad:Item didn't function as expected.
2572251
Dead on arrival, after disassembling, i could check the internal battery came dead out of the box and is irreplaceable.
3675925
The front light is fine and didn't take much to figure out how to mount it and use it. The back red light however doesn't work at all, no matter if new batteries or not. Contact inside the battery compartment is okay. No idea why it doesn't work. Will have to go through the hassle of returning the whole set.