Off Road Lighting: Car,Motorcycle,Back Up Light,Jeeps,4x4,ATV,UTV,SUV,Truck,Boat,Bus,etc. Other Lighting: Excavator,Dozer,Road Roller,Crane,Tractor,Harvester,Grain Drill,Snowplow,Fire engine,Rescue Vehicle,Camping,Mining,Construction Lighting,etc. Household Lighting: Garden,Backyard,Garage,Indoor Lighting. (Note: Use a voltage transformer/converter to convert the AC 110-120V to DC 12V for indoor use.) Note: They are aftermarket parts. NOT D.O.T. approved. Do not use if D.O.T. is required. For off road use only. Before installing this product,please check your state/provincial and local/municipal laws and regulations.