Strobe

White all light sources illuminate the subject, the strobe both illuminates and "freezes" the subject.

a memory strobe; a data strobe

... as they fuck she quakes, body strobing miles beneath him in cream and night-blue, all sound suppressed, eyes in crescents behind gold lashes...

Here was a blazingly erotic sex star par excellence as Travolta gyrated around that strobing disco dance floor like a cock-o'-the-walk.

The problem was that when running cables the entire length of the tunnel, engineers had to take into account any voltage drop to ensure no lights strobe - something that could cause serious issues for drivers running at high speeds.