3 out of 4 work amazing!
350466
Super bright and easy to install. However,  1 of the 4 that I ordered doesn't work at all. I made sure to let it fully charge before use as well. Hoping the seller can replace it. :-/
3871089
I ordered three and received two in perfect working condition and one with dying batteries. The other two light up very bright but the 3rd barely lights up in a dark closet so I'll have to wait till I go to the store to pick up a fresh pair of batteries. Aside from the battery issue, the lights are amazing! The colors are vibrant and with two on one wheel it looks pretty cool, but it would look better with three.
1995815
Updated: 1 of the 3 still work but 2 of them were faulty and I never heard back about it...
I definitely feel cheated
1737513
bought 3 of these, 1 was DOA, the ones that worked are great though
562908
When they work they are great. Be prepared for some trouble though 3 of my friends have them as well and we all expireince issues with sound loss and such on occasion but it just needs to be reset.
2909490
Good deal but there are some that don't work, make sure to buy more than you think you need
2320952
None are working .. I sent them
all back ... :((((
update: i got new ones and some work and some are challenging .. thanks for following up! i ordered more again.
2423043
I bought 3 at a time and every time there was one in the bunch that was not working correct so the ones that work are great the other ones you have to live with or keep ordering them till you get all good ones
3406264
I love them! But a few of the colors are dried out and don't work which was a bummer because I really liked them. But the ones that do work are great
196493
They are really cool--if they work (and keep working).  I ordered a set of four and one did not work, so I Amazon sent a replacement box of 4.  In the time it took for replacements to come, two more stopped working.  I have found four that work from the eight and will be sending the others back so I do not get charged for the second set.  I only hope that they all KEEP working.
622330
I ordered two sets, one light out of each set doesn't work. I keep moving those particular lights around to see if they just aren't getting enough sun, but they just don't work. Others work perfectly and are very nice, but giving this a three star review due to the 2 that didn't work.
3910244
3 of 4 worked easily in changing the code.  The 4th doesn't work.
2326421
3 out of 4 we bought work well, the other will not last very long. one only stays lit about 4 hours while 3 of them work well for at least 6 hours.
4153385
Some worked some didn't. The ones that work look great! Would give 5 stars if the company wasn't so hard to get ahold of to try and get the ones that don't work replaced. Only been a day I'll update on whether others are working or not in a month or 2.

Update: changing to 5 stars. The bulbs still work and the company contacted me regarding the bulbs that didn't work. Also someone broke into my truck and they still replaced the bulbs even tho I could not send the broken bulbs back!
353000
I would give this five stars except that I found maybe 3 of them won't write. But overall I love them! They work very well, nice and smooth!
3889603
I ordered 3 of these as gifts. Only 1 of the three rotated and we had to wait for that to warm up before it began rotating. We left the other two on for over a half an hour and they never started rotating. We will be returning those two.  With that said, the one that did work was amazing! My 1.5 year old loves it and I will try an order more to see if those work.
2267722
They are cute but out of the four one does not work.