syncedlights

noun
UK /sɪŋkt laɪts/
US /sɪŋkt laɪts/

Lights that turn on and off together at the same time.

The syncedlights on the Christmas tree blinked in perfect rhythm.


OTHER MEANINGS

2. Lights in different rooms that are set to change together.

We set up syncedlights so the whole house glowed the same color.

3. Stage or concert lights that flash in time with the music.

The syncedlights pulsed with every beat of the song.

4. Lights on a device that blink together to show it is working.

The syncedlights on the router showed the connection was good.