Vertex are in the tops for quality and performance. 37.5 inches long covers easy 48" tank no problem.
There is two extra add on red led modules and one UV module installed in it / the vertex lights have removable banks if ever wanting to change colours or for any repairs if needed.
all the colours/times and features are fully controllable in basic ways or advanced ways depending on how much you want to get into it.
This light new is in the $2000.00 range. Priced to sell at $950.00
Link for information below.
http://www.vertexaquaristik.com/Prod...S/Default.aspx
Located in Vernon BC.
Will ship at buyers expense