My Home Entertainment PSW INVERTER started out being a 150WATT model. This didn't last very long and went to a 300WATT PSW model which was connected directly to the battery circuit. I ran a hidden drop cord using WIREMODE install kits from LOWES to my home entertainment area and also to the sleeping bed area. All you see at these two locations is a multi-connection 120VAC drop cord setup on the back side of cabinet top which includes an ON-OFF switch.

This is on 24/7 in my setup and being PSW I DO NOT have to worry about anyone plugging in something they are not suppose to making it human safe for us. After a year or so of a 300WATT model we finally ended up with a AIMS PSW 600WATT Inverter as the idea keeps getting more and more items you want to use it for. My power consumption is basically around 250WATT on an average but it is nice to have the additional power available for a few things that might get plugged in... We normally use the INVERTER for our home entertainment items from 4PM to around 11PM each day when camping off the power grid. I got my PSW INVERTER from AMAZON for $149 about four years ago...

Once you start using this emergency power source it becomes a very necessary item to have around - believe me hehe...
Roy Ken