I've seen some people say they have a decent failure rate and rate of fire etc but none of mine have given me any problems so far. I have many Philips Hue bulbs that I use with these adapters. I can safely say that I trust them with all the lamps I have. There have been power outages or surges and they look a lot better than the cheap boxes you find for the same price or a little less. My only complaint is the amount of length it adds compared to the cheaper ones. Obviously you're paying for quality and they're plastic so they're not 100% flush with the sockets, but they still get the job done. Be careful if you have a ceiling fan as this can render your fan covers unusable like mine (to be honest my cover was pretty small originally). But there are no real production problems. I have already recommended them to my Hue enthusiasts.
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