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This was taken from Aqua Botanic Lighing, the link you provided and i found it intresting
"The most efficient bulbs in the sample are the metal halides, the high pressure sodium, and the tri-phosphors ADV850, Dulux, Pentron HO, and Aquarelle, about 20-30% more efficient than the average fluorescent. Of note is the comparison of bulbs with same spectrum but different power. The PC6700 with 55 Watt power is significantly less efficient than the 96 Watt version. This trend should be true for other fluorescent types as well, and also for the MH types. Interesting enough, a generic, traditional metal halide does not perform so well when put side by side with more evolved types such as the dense-line emitter MHs (MHN, Iwasaki65 and Optimarc)."
a few terms
MHN-Phillips dense line emitter MH 4100k CRI 80
ADV180-Phillips advantage Flourscent
quite a read....Give it a look
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Aquapod 24 HQI
AC 70 Fuge
25lbs LS
40lbs LR
Hydor Koriala 2
Maxi Jet 900 Pump Replacement
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