The lumen is defined as the luminous flux emitted by a light source of one candela of intensity over a solid angle of one steradian.
So it shouldn't matter that the LEDs only emit light through 150degrees; that should have been factored into the lumens measurement.
Is it because a directional light doesn't have a single lumens value, so they give an "average" which is in fact more "candela" than "lumens" ? Or are we mixing up the measurement of the bulb and the whole fitting ?
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Date: 2020-08-28 07:19 (UTC)The lumen is defined as the luminous flux emitted by a light source of one candela of intensity over a solid angle of one steradian.
So it shouldn't matter that the LEDs only emit light through 150degrees; that should have been factored into the lumens measurement.
Is it because a directional light doesn't have a single lumens value, so they give an "average" which is in fact more "candela" than "lumens" ? Or are we mixing up the measurement of the bulb and the whole fitting ?