Hawk 8 TIR 3 Watt Traffic Advisor Gen4 3W leds TIR/ Powered by 12V DC 2" Bracket with suction cups/ Push button for pattern selection on cigarette plug/ ON/OFF switch on cigarette plug Features more than 15 flash patterns/ Built in waterproof driver/ Aluminum frame 3 year manufactures defect warranty Size : 38inW x 2inL x 1.5inH -2 Patents Pending Gen4 3W leds TIR/ Powered by 12V DC 2&#034; Bracket with suction cups/ Push button for pattern selection on cigarette plug/ ON/OFF switch on cigarette plug Features more than 15 flash patterns/ Built in waterproof driver/ Aluminum frame Size : 38inW x 2inL x 1.5inH -2 Patents Pending On/Off Pattern Select