Trevor, If something I sell screws up within a month, I'll replace it, but that comes out of my pocket. The warranty is provided by the manufacturer, not me. The month figure is just me, if it's going to fail it will do it within a month.
If it's under a month old, I can replace it out of my pocket and use the one that comes back from repair as a new unit elsewhere. I've lost a months worth of manufactures warranty which is ok.
If it fails after a month or more, I'll send it back to the manufacturer for repair. That may take weeks turnaround but I'm not going to bankroll some chinese company for their hardware failures. Let them fix it, but the customer must suffer is the result. I can't provide unlimited warranty on every piece of crap I sell, It's just not realistist.
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It has stopped raining