T Tocas Blue 16 LED LED Law Enforcement Emergency Hazard Warning Strobe Lights With Suction Cups Comes with one strobe light unit and 3 suction cups and installation bracket 18 Different modes of flashing /strobing with a push of a button to cycle through modes.,Memorizes last pattern used ( recall last pattern ) Can be seen upto 1/4 mile,High intensity 16 LED 16W Strobe Light Upto 50,000 hrs life expectancy while consuming less power then standard bulbs All vehicles equiped with a 12 volt cigarette adapter.Easy to install, Brackets and suction cups preinstalled, and plug into a 12V cigarette lighter.