I've never used a power regulator. And I'm not entirely sure how you guys mean by having 2 switches. I think you mean 1 switch for each battery. The reason I'm not sure, is because some of you are also trying to figure out a way to power the retracts independently from the rest of the system. As far as I can tell, my retracts are not designed to be powered independently from the system. You can find the specs to these here: <span style="text-decoration: underline;">http://www.wingspanretracts.com/LGR610T</span>