XM 250W DE 15K or 20K? - Canreef Aquatics Bulletin Board

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XM 250W DE 15K or 20K?

10-12-2008, 01:41 AM

Abbyreefer Abbyreefer is offline

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Join Date: Sep 2005

Location: abbotsford, B.C

Posts: 134

from what I've read teh par rating for some reason on the xm 20k's are better then the xm 15k bulbs. heres a link.
http://www.reeflightinginfo.arvixe.c...m_orderby=PPFD

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