I ordered them for many Christmas candles that are in our windows for the holiday season. I've used 11 bulbs so far, 6 of which have stopped working: 4 bulbs only worked for a few minutes and then burned out, and 2 of those worked for about a week before burning out. The rest are still working. In terms of quality, I wouldn't call it spectacular. The glow is comfortable and bright. The bulbs are VERY hot so use caution when within reach of children, pets or window cleaning cloths. They touch our blinds and I'm concerned about the possible fire hazard, so I don't leave them on when we're not home.