Auto Led Light,Gledto Super Bright 4 LEDs 4W Law Enforcement Waterproof Emergency Hazard Warning Flashing Car SUV Truck Vehicle Construction LED Top Strobe Light Lamp With Screw Base (Blue) UNIQUE DESIGN :Great for emergency workers, construction, security, etc.Weatherproof ready for exterior mounting; dust cover allows for easy maintenance. LONG TIME LIFE :light Up to 30,000 hrs life expectancy. PACKAGE SIZE:12.5CM x 3.5CM x 3CM LIGHT COLOR :Blue EASY TO INSTALL : Use two screw put it on the top of your vehicle . Ultra Bright Emergency Service light Led strobe lights emergency.