So after I made a youtube video on the Sigineer, a company named FoxPower reached out to me. Benson from FoxPower is great, and I ultimately left the foxpower up next to the Sol-Ark 12ks because it makes a good backup charger and ALL of the cooling fans are thermostatically controlled, unlike the sigineer that has one that operates 100% of the time. Downside is the xfrmr on the foxpower runs a bit hotter, but I haven't personally noticed a problem in terms of longevity caused by the extra heat. The internal guts of the FoxPower and the Sigineer are identical, just a different case in a different color.