Custom Dynamics Universal Magic Strobe Brake Light Modulator Features: Powered by Custom LED with Blaster X technology 10-user selectable flash/strobe patterns Over-current/thermal/short circuit/reverse wiring protection 84W, 12V system Works with LED or incandescent bulbs Measures 2-1/4 L x 1-1/4 W x 1/2 H in addition to factory style connectors