i bought these 2 only one worked i bought 2 ...
342786
i bought these 2 only one worked i bought 2 more a they both failed you tighten the screws and wire falls out
1141067
I bought 2. i works fine. 2nd one flashlight does not work
3275054
I bought 2 and one of them is very weak.  I put in a new battery, still weal.  The other one works fine.
4398715
I bought 2 one is great, the other doesn't work and there is no way to return it that I can find.
54839
Im very disapointed, since i order 2 cables and only 1 is working, i would apreciate that you guys, will deposit the value in my credit card, for the 1 that is not working anymore
1868898
I bought these in Oct of 2017 got 3 of them in tje box, 2 of them work fine but just tried to set the 3rd one and its not working at all. Too late to return will have to try a different brand.
4883424
I ordered two (2) and they did not work.  Those were returned and replaced by two (2) more and they did not work either.  I highly suggest that the vendor check the inventory as I am doubtful if any of them work.
4021785
Sux I got 2 and 1 didn't work from the jump second one only lasted 2 weeks n I only drove the car twice before I noticed it didn't work product is garbage
3511753
Bought two one dose not work.  Probably will cost more than I spent to return.
4231092
I bought 2 of these. One worked and one did not.
4754856
hard to tell if it is effective. only 1 of the 2 worked on arrival
1981864
Both ones I ordered didn't work that's probably why they was so cheap
1636756
cheap price, but one worked and one didnt,  sending back for refund or swap out,  would buy again,  I doubt all are defective, either way I like the one that does work
1292781
I ordered the 3 pack and only got 1 they work great but need my other ones be careful watch ur quanitity
3075509
the one that I first bought worked for a short period and the company sent me another and it worked for about 2 weeks.  This was a costly mistake.
3615113
Bought 2. One still works the other doesnt. They were in the same location and outside the same amount of time.
2891102
Only one of them had all the diodes working. But since I only needed one, I just threw away the other.