I cut off the +12V cables from BFL's made-in-China supplies, put crimp terminals on them and wired six singles to a 600W single 12V output Vicor Power "Flatpack" supply, which I already had. The two other singles are still powered by the original supply and will probably stay that way for the near future. When the remaining four Singles arrive (any day now), I'll wire one of them into the above-mentioned 600W supply and the three others into a 300W Vicor power Flatpack. These Vicor Power Flatpack supplies are awesome, if expensive. But I already had them from a former [unsuccessful] business venture.