I've talked to several sales people in stores such as Best Buy, Micro Center, etc. and they claim most routers have a similar output wattage. The big difference is in the speeds, more money .... more speed. Yet the extender vendors claim they have a higher output wattage than the routers, maybe 10 times as much (but no specifics). I have an extender, mounted on the wall just on the other side from my router and it has not helped. I suspect even the extender has trouble picking up the signal from the router - that's why I'd like to find a router with a stronger signal.