They will not fit as the base tab is centered on them. My Panasonic vent/bath light uses an 18w or higher version with offset grommets. I installed these cheap CFLs by removing the tabs with my dremel. Would have given these higher ratings if these cheap CFLs weren't already flickering after less than two weeks of use. As cheap as they are, I'd rather pay more for Sylvania Bulbs next time, at least I can get more life out of them.
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