I don't know much about regulated box mods and what is out there on the market. I've played around with iPV2, iPV3, and a segeli but I know that some of these can be pretty high in price. I'm not against purchasing one of them but I just want to find something that is going to be really good for the price, preferably one that runs on dual batteries. Also, would like something that could at least do 50 watts maybe 100.