Not all of them worked right out of the box.

First off, now that I have the 12 I need that all work I can say that they are very nice. The first set was ordered by my girlfriend just to see if we would like them. After 2 days, I ordered 2 more sets to complete the front of the house. The night I ordered the other sets, 3 out of the 4 originals just started blinking after they were on for about a minute. Amazon very quickly replaced the original set and those where fine. The day after the replacement set arrived, my 2 sets came in. It was 2 4-packs. Out of the 8 candles, 2 would not work at all. Again, Amazon offered a refund or replacement and I opted for the replacement since the others seemed ok. So far so good but they are not heavy duty in any wa. Another recommendation is to clean your window before applying the suction cups or they have a hard time sticking. I have 100 yr old windows so the waviness of the pane may contribute as well. I hope they hold up.

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