Plenty if you don’t want grid tied, otherwise your local utility probably has an list of the ones they’ll accept somewhere. There is a list of things an inverter will have to be certified to be able to meet for grid tied such as anti-islanding requirements, and in this case i’m afraid you’re almost certainly better off to be going with a reseller the inverter manufacturer actually recommends than playing Amazon roulette.
From my understanding here it tends to be easier to just stay off the grid for very small systems, either by just plugging in a few panels to a battery and small dc to ac inverter(with appropriately rated fuses between all connections) or else getting an automatic transfer switch and treating the whole thing like a generator.
That being said RVs and camper vans are a thing here, and there may be some more plug and play systems in that direction but small 12v systems are a bit out of my wheelhouse.
Well, if you want to be serious, non lethals are always better to use because you can actually practice with your friends at trying to hit people with them in combat.
Also, can we talk about the fridge horror that Hermione may very well right about her priorities here. A witch gets killed and they just stick around as a ghost, whereas if a muggleborn gets expelled they get their wand snapped and all memories of magic/their magical friends erased, all the while any of their enemies with magic can trivially track them and their family down and attack them without them being able to defend themselves.
Even just the basic magical creatures and pests they’re learning about in Defense could likely pose a real danger to them, as I highly doubt you make eleven year olds take a mandatory self defense course otherwise.
At best, all the time and childhood memories of you and you’re family trying to piece together the mysterious occurrences around you, all of your magical relationships, even just the sense of comfort and community that came from you going from alone in the world to finding a social space made up of thousands of people just like you, all just completely wiped from existence.
Death by contrast just means being a ghost or passing on with the soul wizards have scientifically verified to exist or whatever, not necessarily as scary a thought to a twelve year old.