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My numbers are from estimates from reports such as Grim's & Sanjay's. For those who have tested with shield, how thick was the glass shield & does the same apply for acrylic? I would think the thickness & the composition of the glass/acrylic should make a difference.
I am sure this adds another layer of complication in terms of quantification. I am also sure that the position of the shield relative to the bulbs also makes a difference in the refraction of light & thus the spectral & par outputs.
Sanjay, your tests are done with the probe exposed to air, or actually in the water?
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90g AGA/RR/BB, 30g sump, Aquactinics 2x250 (XM20K)/2x54 T5 (AB & B+), Eheim 1262 Return, Deltec AP600, Tunze 6060 & Osmolator 3155, Homemade 2 part
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