
Purchased for a vertical lamp - double checked to ensure all voltages/watts and other specs are correct. When I put the bulb in, I immediately noticed that it's not as bright as our originals, but it works. As the days passed, the lightbulb grew dimmer and dimmer. I finally decided to replace it and when I removed it the bulb itself was completely black inside. I'll replace it with the same one (as it came in a box of 5) and try again to make sure the first bulb was just an accident. I will try to update. But now there is a star. Our original lamp literally lasted over 10 years.

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