The company's new slim-profile LED visor light bar makes it all but impossible to tell that the car behind you is about to ask for a mandatory "donation" to the Policeman's Ball.

The LED light bars can produce colored light from a palette of 16 million colors, or you can choose a tunable white light (ranging from a very warm 2,000 Kelvin to a cool 7,000K).

LEDs have been around for 60 years, but older devices operated towards the red end of the visual spectrum. In the 1990s, however, bright blue LEDs became available – winning their inventors the 2014 ...