Thrasher XL Traffic Advisor 6 Head 4TIR (Blue) Generation III TIR LED technology Voltage: 12 VDC SAE APPROVED 6 heads with 4 LEDs per head Features more than 15 flash patterns Built in, waterproof, encapsulated driver Sturdy aluminum frame with a black finish Includes dimming capabilities for nighttime use 2" Bracket with suction cups Push button for pattern selection on cigarette plug ON/OFF switch on cigarette plug 3 year manufacturers defect warranty Size 30in L x 2in W x 2in H