Purchased to replace IKEA mini CFL candelabra lights that burned out in our IKEA Smila night lamps. One is a blue star and the other is a yellow crescent. Both have small perforations in the colored plastic caps. The CFLs in both lamps have each lasted less than 3 years (much less than the 5-8 years the CFLs always claim). These 5600K bulbs are blue as expected, but they work really well under the blue plastic bulb cover. However, the yellow moon takes on an unnatural blue cast from this bulb. My bathtub lights also use the same base, but I'll try something different to get a warmer glow. ----------- ------ UPDATE AFTER 26 MONTHS: One in two bulbs will still work for at least 8 hours a day after nighttime use. Another bulb that has hardly been used has lost 2 out of 3 LED bulbs so it is now very dim and flickers noticeably. Lightbulbs, all bought from Revain! The quality just doesn't exist, especially for such a low power device that actually has no mechanisms for failure due to overheating at all. I have changed my rating from 4 stars to 2 stars and will continue to look for other replacement options.
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