Like 90% of the LEDs on the market they suffer terribly from flicker. A color temperature of 3000K is good, as is fluorescent brightness, but as an incandescent bulb the flickering makes it useless. If you want an ST-64 Edison bulb, look elsewhere. These are not the bulbs you need. The seller contacted me about my 1 star rating and sent me a replacement free of charge. I like sellers who are willing to endorse their product. So far the replacements have NOT flickered so maybe I just have a marriage happening and if the seller fixes it even better. If the original products didn't flicker, the rating would be 5 stars. Since the seller fixed the problem, I would give the product 4 stars and the seller 5 stars. Update June 2020: It's been 1 week since the seller sent me a replacement pack and 1 of 4 bulbs. almost all burned out. As for the flickering, it appears to be heat related. If you use lightbulbs for about 2 hours, they will flicker, some are much worse than others. Update August 2020: The flickering will continue if not getting worse. These are cheap lights and avoid them.
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