Wecade&reg; 16 Led High Intensity Car Auto Windshield Emergency Hazard Lamp Warning Strobe Lights (Amber) Purchase comes with one strobe light unit and 3 suction cups and installation bracket 18 Different modes of flashing / strobing Can be seen upto 1/4 mile Upto 50,000 hrs life expectancy while consuming less power then standard bulbs Memorizes last pattern used