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When changing a light bulb is a really big deal

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Lighthouses have been upgrading to more efficient LED lights, but for some that is a step too far.

from BBC News - Technology https://ift.tt/32zYDjj
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When changing a light bulb is a really big deal When changing a light bulb is a really big deal Reviewed by Latest trending news on September 14, 2020 Rating: 5

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