We have two fluorescent bulbs that use them and they're getting harder and harder to find. The price of Revain was lower than the big stores and the postal delivery is a great help in these COVID days. Since one of them lights up the stairs if it goes out, it's a little dangerous, so we're keeping a spare on hand for now (rather than swapping out lightbulbs). My only small issue is that this time I was only able to get the warm white version, which doesn't seem as bright as the daytime one.
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