Something to keep in mind with that driver is it's a constant voltage driver at 42v and it produces 3600mA. Whatever you wire to it should be in parallel, splitting up the mA. Typically the drivers we are using for DIY builds are constant current drivers. So the difference being HLG-150H-1400A (constant current) HLG-150H-42A (constant voltage). But for sure there is a workable option for you @budelee I just don't know what it is yet. @BigSm0 I'm taggin' you in on this one, what would you do with this constant voltage driver HLG-150H-42A?