Lumcrissy 54LED Emergency Vehicle Dash Deck Grill Strobe Lights Bars Warning Light (Blue) Set includes one set suitable for windshield/headliner placement and one set suitable for grille placement Budget friendly strobe light set suitable for all automobiles with a 12VDC battery. Great for emergency workers, construction, security, etc 54 LED produces a very bright light Up to 30,000 hrs life expectancy Rainproof exterior ready,three selectable flash patterns