Quote:
Originally Posted by Brandon Holley
Many companies will try and squeak a few more LPW (lumens per watt; essentially how efficient the bulb is) out of their fixtures and bulbs by bumping the CCT up a little bit and essentially gaining free light.
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... and they do the opposite (lower the color temperature) with incandescents to create "long life" bulbs.
60 watt standard 840 lumens
60 watt "long life" 770 lumens
Don't forget that the user can easily lower the color temperature and/or change the lighting pattern by selecting a different lamp. A different lamp can completely change the look and feel of the same bulb in a given room. A glass bowl or reflector which directs the light upwards to reflect off the ceiling produces a completely different lighting pattern than a lampshade that is narrow at the top and wide at the bottom to direct the light downward. And a white lampshade produces a different "feel" in a room than a dark color.