... functions 5.waterproof DC12V LED traffic direction arrow warning light FS-2320-1APPLICATION:police car: guide the vehicles running , for example ... , the security car, road-weeping lorry, etc.SPCIFICATION: 1Model No.FS-2320-12voltageDC12V3light source0.15W LED4LED lamp colorred, blue, amber, white5domes ... per setSIZE DIAGRAM: DC12V LED traffic direction arrow warning light FS-2320-1