If you've ever noticed some police cars using interior red lights at night, ... Many of today's versions have retina-scalding light-emitting diodes (LED) at their heart, ...

More police cars have lights on but not flashing. ... the version of police lights on vehicles have advanced from halogen lights to strobe lights to today’s LED style lights,” he said.

If you see flashing yellow lights on a police car near the scene of an accident, that's your signal to slow down and keep an eye out for any hazards or instructions from the police. A police car ...

But Michigan State Police (MSP) cars still rock old-school lights for a reason, which any Yooper or Troll will gladly explain to you at length, because folks from the Great Lakes state love to ...