Custom Dynamics LB03 Brake Light Bar Knight Riderz Non-Sequential/Flashing with Red LEDs Feature 12 super-bright LEDs. 3M double-sided tape for easy mounting. Work with any 12VDC system with no load equalizer or resistors required Non-sequential light bars are dual-intensity and you have a choice of flashing or non-flashing brake alert Sequential light bar features "Knight Rider" side-to-side sequencing in running light mode and a flashing brake alert Sequential LED turn signal light bars will work with flashers that flash between 60-120 times per second (the standard DOT rate); perfect for auxiliary turn signals