[Moru]

Leds can flicker even worse than flourescent. Test it with your mobile camera, shove it up to the lights real close and see if it starts showing banding all over the screen. The calmest light you get is halogen or a normal lightbulb of the burning rust type.

[mastax]

The solution is to have DC powered lighting circuits so you don't have terrible $0.50 AC/DC power supplies in every bulb. It'd be nice to have DC circuits for electronics, too, but that's probably a lost cause.

[jacobolus]

I’m hoping that USB Type C connectors become ubiquitous and people start installing USB C outlets in addition to AC in many wall sockets. Many small appliances can switch to DC and get rid of their transformers. AC will still be needed for e.g. vacuum cleaners, washing machines, refrigerators, loudspeakers, blenders, toasters, hair dryers, etc.

[Tharkun]

You can see many (cheaper) leds flicker out of the corner of your eye. Especially led strips. This drives me nuts around xmas, when streets are decorated with cheap, flickering leds.