Many articles are now being written about LED lamps, even more about "smart" lamps - in which you can change the color temperature, brightness and glow color. Some have a built-in bluetooth speaker, a New Year's garland and other things that are not particularly needed by the light source ... Many manufacturers are now "running around" with CRI, saying that they have more than 95 (strange that it is not more than 100), as well as the service life of a light bulb> 50,000 hours ... This is not what this article will be about, but about the fact that winter is on the doorstep, a distance and ...
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About mercury and "mercury phobes" in a 150W lamp, its 10mg, in a thermometer 2g.
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