XKTTSUEERCRR 54x LED Ultra Bright Emergency Service Vehicle Dash Deck Grill Warning Flashing Strobe Light (White) Budget friendly strobe light set suitable for all automobiles with a 12VDC battery. Three selectable flash patterns. Rainproof exterior ready. Easy to install, Just need to wire the positive ( + ) and ground ( - ) to a 12V power source and connect each LED bar to the controller 1 Year Warranty