inputs.text: works fine costs much - ive using iota power supplies many decades one like others well engineered built like brick poop house charges 24vdc battery bank comprised 3 strings 4 deka 8l16 batteries perfectly no annoying humming fan quiet unit lightweight easy mountit gets 4 stars instead 5 because1 costs much think 250 reasonable price point unit theyre competing powermax pm34024 since dont know anything powermax unit know iota thats bought price difference 140 tempted switch brands2 clearly advertised coming iq4 4 stage charging module mine didnt called vendor polite efficient sending module 2nd day caused delay wasnt expecting since battery bank runs heat pumps heat cool house minor inconvenience3 came nema 520p plug suppose full load pop 15a breaker wanted make sure plugged 20a circuit anyway caught surprise caused another interruption installation debated whether run store spend 15 matching receptacle cut plug end put standard plug standard plug home thats ended doing4 line cord gets warm full load iota im quite sure safe increasing line cord size notch would improvement