LEDs used to be inefficient

By dezembro 27, 2017 No Comments

LEDs used to be inefficient, converting only a small percentage of incoming electricity into light. And to my chagrin, this $63 bulb is still not bright enough, doesn’t put out enough “lumens” (the technical measure of light output) to bathe the whole room in light. It claims to generate more than 700 lumens, about the same as a 50 watt to 60 watt bulb, but I don’t believe it.

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