FEATURES - This blue led roof top strobe mini light bar has a total of 72 high-intensity Led chip. Visible in day and night, ensuring maximum safety for emergency vehicles and trucks. HIGH QUALITY - Made of durable ABS housing, crystal clear housing for max brightness, scratch resistant PC lens. IP67 Waterproof Rate. Able to withstand harsh weather conditions. Over 50,000 hour lifespan. POWERFUL MAGNETIC BASE FOR EASY INSTALL - 2 pods with a total of 12 magnets, with protective rubber feet. Place on any vehicle metal rooftop. 10FT straight power cable. 15 STROBE FLASH PATTERNS - 12V cigarrette plug with convenient dual switch design. 1 for easy power on/off. 2nd to change between 15 different flash modes, includes last pattern memory recall. Patterns include Rotating, Flashing, Alternating Between Left and Right Side, etc. These modes are sure to provide caution to potential upcoming hazards. WIDE COMPATIBILITY: Perfect for construction vehicles, safety, security, snowplow, postal, city service workers, tractor and any 12V-24V vehicle, ensuring safety in a variety of applications.