Are you ever driving down the street, maybe at night, and look in the rearview mirror suddenly blinded and ask yourself, "Have headlights gotten brighter?" You may not be imagining it.
It turns out that the average halogen headlight is about 40 to 70 percent brighter today than it was 20 years ago, reports The Boston Globe in an investigation. And if that bright headlight isn't enough here is what is really shocking:
But that's nothing compared with those bluish-tinged, high-intensity discharge lights, which are more than 400 percent brighter than headlights from the early 1990s.

