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Old 01-21-15, 08:23 AM   #158
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Directional light is much brighter per watt then 360 degree light sources

Something to consider about LED replacement tubes for T8 fixtures is that the LED replacement bulbs emits light at a 110 degree pattern vs the 360 degree pattern given off by T8 fluorescent bulbs. In this case, only about 30% of the light given off by the t8 fluorescent is actually hitting the intended target.
Most of the lumen's emitted from a conventional t8 tube is lost to the ceiling and upper walls , reducing the effectiveness of the watt draw.
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