Researcher has developed, at a cost of less than one dollar, a wireless light switch that runs without batteries, can be installed anywhere on a wall and could reduce the cost of wiring a house by …::A U of A engineering researcher has developed a wireless light switch that could reduce the cost of wiring a house by as much as 50 per cent.
Copper wires are expensive. And you need to house those wires in aluminum pipes. That’s a lot of metal that you no longer need to buy. Especially considering how many light switches in our homes.
And you need to house those wires in aluminum pipes.
The fuck are you talking about? Romex is just run in your walls. There’s no aluminum pipes in your wall.
Presumably they are in an area that requires armored cable, such as Chicago
