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Lighting/Enclosures
Solarmeters
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[QUOTE="Taterbug, post: 1653621, member: 71213"] The intensity along the length drops off due to how the phosphors are distributed in the bulb, and how they are charged by the fixture. I see it in my 22" and my 36" bulbs - it's more noticeable in the T5 for sure. I think brightness/lux distributes the same. The directional intensity is related to the reflector and the angle you the meter. Without a reflector the intensity is uniform out from the axis of the bulb. The reflector redirects some of the light based on its shape. I think UV guide UK has some diagrams. I only see the lateral variation, since I don't have a reflector. If you get around to comparing the under cabinet fixtures that would really interesting. Particularly if they have a magnetic ballast. I use the T5 without a reflector and am able to get safe readings. Not sure I would have set up that way without the meter, but I certainly wouldn't switch back to the T8. [/QUOTE]
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