22 of 25 people found the following review helpful
Great if you leave them on,
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This review is from: Feit Electric ESL40TN/D 42-Watt Compact Fluorescent High-Wattage Bulb, Daylight (Tools & Home Improvement)
Been using three of these for around 16 hours a day for 6 months now with no troubles. They are turned on and not turned off during that period though- I have no idea how they perform when constantly turned on and off, which is not how CFLs should be run anyway btw.
These bulbs are large physically, heavy, bright, very blue/white/daylight-ish, and they represent an excellent value.