Padhome 16 LED High Intensity LED Law Enforcement Emergency Hazard Warning Strobe Lights 18 Modes for Interior Roof / Dash / Windshield with Suction Cups (BLue) Purchase comes with one strobe light unit and 3 suction cups and installation bracket 18 different modes of flashing / strobing Can be seen up to 1/4 mile Up to 50,000 hrs life expectancy while consuming less power then standard bulbs Memorizes last pattern used