Encell 30 LED Strobe Flashing Warning Light 12-24V Height: 5"(13cm),Base size: 3.8"*2.8"(9.8*7cm),Voltage: 12V - 24V 30 super bright LEDs for high visibility output Weatherproof ready for exterior mounting; dust cover allows for easy maintenance Permanent mount. Quick installation. Can be used in fog, rain or snow, suits for car, truck, construction site, emergency, etc.