Rupse 44 LED High Intensity Law Enforcement Emergency Hazard Warning Flashing Lights Bar Car Truck LED Top Roof Mini Bar Strobe Light 12V Cigarette adapter with Magnetic Base (White & Yellow) Unit has a total of 44 LEDs; dimensions:17" ( wide ) x 9" ( deep ) x 3.25" ( height ) 7 different selectable strobe patterns with ON/OFF and switch button;Last pattern recall / memorized function Weather-Proof IP67;Up to 30,000 hrs life expectancy;Can be seen up to 1/2 mile. Plug this into your 12V cigarrette lighter and with the magnetized bottom place on any exterior metal. Magnetic base that can be put onto any rooftop