Thanks to both of you for your replies.
Only the 2◊55VDC, no "neutral/common" problem concerns me. I guess it shouldn't??? Why would it, in regards to anything I may plug into it ???
I will inquire about that one before buying it.
Flickering/flashing is junk. I would return it.
Not worried about split-phase 240V. No room for an electric clothes drier in my bus. Stove is propane.
Never going to use this with a "panel".
Never going to run 120VAC wiring in my bus.
At most I will connect a 20-amp 120VAC plug socket (with the weird T shaped hole) to run my welder from rare time to rarer time. This will be a temp connection while working only, and is the reason I want the 3500-watt model (assuming 120V ◊ 20A = 2400watts)
I'll be using this for my laptop computer and monitor, mainly. I might even buy a small DVD player (I have a couple dozen music videos I've never gotten to see yet). The entire reason for yet another inverter (will be my third): pure sine wave.
Maybe I'll run a blender and make a peanutbutter & bananna smoothie. I used to do that when traveling in my car, and just took my 700-watt (1500 watt peak) Wal-Mart inverter under the hood, and made it there. That inverter is already mounted in my bus.
I will want to run a small shop-vac to clean the corners of my mobile home from time to time. Bet it works off that 700-watt one I already have.
Same for a basic drill.
Same for a DeWalt 18V battery charger.
And I have a sewing machine I'm dragging with me, so I can do seat covers when I get around to it. Plus I tend to build my own camping/caving/climbing gear at times. I question whether my 700-watt one would fire this up. Wouldn't do my Craftsman impact wrench, but that might have been too small 12VDC power feeds.
None of that stuff will be going at the same time.
NO fridge - I hate those vibrations, and in a bus?!?!?! NO
no microwave oven
Maybe a water pump? Likely that will be 12VDC or a foot pump.
Can't see a reason in the world to go to 24VDC or 48VDC. My stereo is 12VDC, and runs off my house batts that are charged with my 12V alternator. That is central to my life. My lighting is 12VDC LEDs. What else does a gnome need power for?
I want to pull the trigger soon, so I can get it in the mail and hit the road. I'm thinking I'm gonna gamble on one of these "name brands"...
Look at the Sky; look at the River. Isn't it Good?