I bought an Apex VDM module for my DIY LED kits (main tank and sump) but never used it because I ended up buying a Kessil 360we for the main tank and a Kessil 150 for my sump.
For more information -->
http://www.jlaquatics.com/product/np...%28VDM%29.html
JL Aquatics sells for $106.95 or $120 with tax
Great deal at $80.
Willing to ship at buyers expense.