Some people run their front light—brighter than a rear light—in flashing mode for collision-prevention reasons and such,
but when you're looking ahead and a strong light suddenly starts flickering into your eyes, the flicker effect can
cause dizziness or nausea depending on the other person's condition.....ㅠㅠ
Not long ago, I lowered my head for a second and when I looked back up and caught that light, I got dizzy for a moment and nearly fell overㅠㅠ
