Powerful Surface Mount Warning System Functions as a light bar and a traffic director Designed for outdoor use, with weatherproof connectors Universal brackets and hardware included 11.5' foot cable for installation Bars contain 4, 8 or 12 ultra-bright LED3 modules 4 module bar includes 21 flash patterns & 12 module bars have 32 flash patterns Bright amber LEDs can be seen from over a mile away 4 Module bar (13.25" l x 1.54" h x 1.70" d) 8 Module bar (26" l x 1.54" h x 1.70" d) 12 Module bar (38.75" l x 1.54" h x 1.70" d) Potted full function control box sold separately 5 year no hassle warranty SAE J595 and California Title 13