If your looking for one that will last buy a Magnum or An outBack. I do not like OutBack they do not care about who there selling to. I have been working in the renewable energy industry for the past 20 years. Seen maybe 10 or less Magnum die.

Hell I was off grid on my Mag for more than 10 years. I sold it to my dad and it's still running 24/7 for his well pump and small windo ac.. It's is am small 12 volt ME2012, If you can go to 24 tho. much beater. My solar now is 24 volts. Like it a lot more. Funny too most of the parts are the same or less cost at 24 volts.

Hope that helps..