Viewing a single comment thread. View all comments

Zncon t1_jeb1z28 wrote

There are a few different ways to design these electrical systems. A cheap one like Christmas lights will flicker at 60hz or 120hz depending on design, both of which some people can detect.

I absolutely hate it.

10

Podartist t1_jeblg8k wrote

UK electricity is 50 Hz, visitors from USA (60hz) see flickering. Long florescent tube lighting you find in offices was the worst.

5

AnyAmphibianWillDo t1_jec8yo0 wrote

you can also find plenty of DC Christmas lights with no flicker at all. downsides are they have a brick to plug in and they can't be daisychained as much. I've got some strands that can be daisychained up to 300ft/91m - these cover the vast majority of home use cases, and the lead between the plug and first light is about 20ft/6m so it's usually possible to combine multiple sets. I once had 12 strands on one tree and while that required 3 plugs, it was something like 60w total so I just used a 3 outlet end on a 16awg extension cord

1