They also have a terrible flicker awful for human biology. Check out what Jack Kruse has to say about artificial light at night.

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Some do, some don't. Not necessarily according to price, but it's more likely that known brands like Philips and Osram (now Ledvance) are flicker-free, or close to it. (They also generally last longer.) I can see the worst offenders just sweeping my gaze across the room, but some people seem to be completely incapable of detecting it, even with tricks like waving a pen.