Wired is fine.
Oh okay I couldn't find them but then again my knowledge of electronics shops is none... and in my defence google didn't offer any 5v relays!
Solid state relay? and opto-isolated triacs?
Which would be the best/easiest/cheapest etc circuitry?
I am getting quite confused at the moment. I am a complete novice (so dumb down your wording please!)
I wish to switch a 240v ac light (standard uk) with the output of a USB from my tv or pc.
Hence when tv on, light on.
I have been googling and cannot find any 5v relays that can handle...