The phrase "dancing lights" refers to the visual effect of lights moving or flickering in a rhythmic and lively manner, similar to how dancers move gracefully.
Sentences with «dancing lights»
With eight classical tunes that are activated with dancing lights, your child will be delighted. (strollerlab.net)
His first formal training was as a theater and modern dance lighting designer. (nbmaa.org)
I can imagine the pretty dance the light reflected across a room does with these gorgeous mirrors you've created! (theinspiredroom.net)