The CODE 3 NarrowStik with 3-up “Optix” modules is a must for completeemergency vehicle protection. With its bright, moving signal, it effectivelywarns and directs traffic to a safe passing lane. The NarrowStik comes with anLED control head that has a “Dim Mode” for reduced LED intensity. TheNarrowStik has 4 modes of operation: Arrow Left, Arrow Right, Center Out, andan Alternating Flash Override. 8 Modules Standard Amber 3-Up Hybrid Optix Modules Steady Burn Dim Mode for Reduced LED Intensity LED Control Head Torus LED technolgy for superior light output Weather protected for interior & exterior use 5 Year LED Warranty