Thanks for the responses. I'm seeing the same as not2bme. Ground tester checks out but belkin power strip ground light says theres an issue. I'm slightly concerned because it's only used for electronic devices and I want to ensure I have clean power.
@Solardad
I'm still in the testing phase - I've been very cautious because it's not UL listed and because ive been seeing the ground light on my power strip. I've done long term testing with small loads but now I'm starting to add more load to it and it's working well so far.
I have 6 210w panels and approximately 10kwh of 18650 cells at 48v completely off grid with separate circuits on the AC side. So far so good. I could see maxing it out relatively soon though. I'd recommend it for a hobby/small setup to learn before sinking the big bucks into a higher wattage unit. There aren't very many 48v pipes that do 120v A/C for some reason.