This appears to be a charge controller, 1500 watt inverter, and the equivalent of a group 27 battery (80 amp hr) housed in a single box with outlets mounted on its exterior. Are you looking to run your AC from this or only led lights and charging computers, laptops etc?
The box may have a bunch of 15 Amp outlets mounted and even a single 30 amp, but the inverter is only rated for a continuous 600 watts. That's 5 amps at 120 VAC. It does allow the addition of solar panels up to 270 watts but thats still far short of what many folks install on their RV.
Weight on this unit is low, 20 lbs with the battery, so much of the high cost for the capability is because of being able to be carried to a remote location, is that a need for your application?
I think there are better options for you in the conventional solar systems designed for RV installs.