the prep work on the heat sink was a good sanding on a granite slab to keep flatness then cleaned up on 3 grades of emery cloth and a final polish with aluminum billet polish before the center punch marking/drill & tapping then adding in .0625x45deg lead in chamfers. I got a bit excited working in a machine shop lends itself to over killin most projects like this.
I totally forgot this rig is lighting up my 40breeder mixed reef
both all on
mixed to my liking
thanks for looking if anyone wants a mh i've got one for sale its a 250 watt with icecap e-ballast, reflector and 3 bulbs 10k, 14k, 20k for $150 i won't be needing it any more.
Edited by gabe_j, 14 April 2011 - 05:19 AM.