An Unloved Light Bulb Shows Signs of Burning Out

National Geographic

“Introduced in the mid-1980s, CFLs progressively got cheaper and more efficient, using 75 percent less energy than a regular incandescent bulb. But they never quite overcame the problems that made them unlovable: They needed time to light up fully, the light often felt harsh, and the glass tubes contained toxic mercury, prompting an unsettling cleanup checklist for any poor soul who happens to shatter one.”

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