OT, but I got a 2000W Pure SIne inverter from Renogy and installed it in my RV. Right now, it just powers a dedicated outlet(*). I'm amazed, with no load, switched on, it only draws about 1 amp from my 12V lithium system. Powering my wife's 1850 commercial grade hair dryer on high, it draws about 165 amps. I haven't hooked my oscope up yet to see how pure the sine is, but the electronics I've hooked up to it didn't seem to mind it at all.
(*) nerd that I am, I used a red 'hospital grade' outlet for this so it wouldn't be confused with the rest of the outlets in the camper that are hooked up to campground pedestal power.
I am so impressed with this inverter, that I may hook up a subpanel and a transfer switch, and hook up everything but the air conditioner to it.
I probably should mention that my winter project was replacing the golf cart battery based 12V system with 412 AH of Lithium Iron Phosphate, giving me 5200 watt*hours, and replacing the original 160W PWM solar with 360W MPPT solar. and rewiring all the 12VDC mains with 4 gauge and stuff.