Re: Low-voltage DC is just USB now
USB-C can deliver 100W.
A lot of modern gaming laptops use USB-C as their only power source.
More than enough for a LCD TV and most other things you mention. USB shavers and toothbrushes already exist. My clock radio actually is a USB charger too. Lights, especially LED lights, are way within USB range.
Biting the hand that feeds IT
