The issue you'll run into with an inexpensive setup like that is it's not going to provide enough power to keep your light running long enough. You can't just go by what a manufacturer states. There are way too many variables that will affect the amount of power you can generate and store and I won't get into any of that. But you'll be wise to forgo purchasing a cheap system for $200 thinking you'll be able to run your grow with the power it supplies. Spend that money on more lighting and just pay your power bill. If you could buy a $200 system that would power your lights then everyone would be doing it. But they don't provide enough power. A system that can do what you want is going to cost much more than $200.