Car Emergency Warning Flashing Strobe Light Engineering Police Lamp DC 12-14V Strobe Flash Type, Perfect for Emergency Situations Perfect for use in fog, rain, snow, mud wind season, Usage: Police, Fire Engine, Ambulance, Street Sprinkler, Truck Suitable for alarm at dangerous post in industrial and mining enterprises, at lookout post, on top of vehicle, etc. , long life, super bright Car Emergency Warning Flashing Strobe Light Engineering Police Lamp DC 12-14V Strobe Flash Type Perfect for Emergency Situations Perfect for use in fog, rain, snow, mud wind season: Police, Fire Engine, Ambulance, Road Sprinkler, Truck Suitable for alarm at a dangerous position in industrial and mining enterprises, at the monitoring post, on the top of a vehicle, etc. , long service life, super Type: LED warning light Black is the positive pole The voltage of black and white is 12V The voltage of black and red is 24V Material: plastic color: yellow Package Contents: 4 x warning light Only the above