So far I have not been able to use them. I wanted to use the LED bulbs in my garage in an existing light fixture by converting the outlet with these adapters. Unfortunately, this made the lamps too long to fit in the fixture. Let's hope these high lumen output LEDs become more compact to fit in existing fixtures. The adapters look like they will work fine. But I couldn't put the cover on the lamp due to the total length of the lamp and adapter.
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