Some concerns about the short lifespan of this product. I've only had 1 month so I can't comment on that, but I don't see any indication that it will vary from what the manufacturer says. When I first opened the large box, I was amazed at the small size of the bulb and was certain I had made a mistake. I was even more amazed when this lamp produced much more light than the 40W halogen lamps which were more than twice the size. I wanted to upgrade to a 60w halogen bulb but saw that this bulb had more lumens. I do not doubt the validity of this statement. I have a ceiling fan with 3 bulbs, the total power of which does not exceed 180 watts. So frustrating that they build houses with no ceiling lights or fan/light cord when the fan/light is almost always insufficient to illuminate a room. They are tiny, so they fit into almost every lamp and completely extinguish the light. They're not all-wash-out hot in Kelvin like many others. If they meet the specification, then these will be my future fan lamps.
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