They burn out too quickly. They don't last as long as other brands I've tried. Most of them burned out in a few weeks, and all but two burned out in a few months. While I don't expect epic longevity from a cheap lightbulb, this was unacceptable. They may not be a bargain as they don't last long at all. If your track lighting is the same as mine and it's high up and the bulbs are hard to change, having to replace them after a few weeks is very inconvenient.
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