The laws of many states do not explicitly cover LED off-road lights. In most cases, they'll classify light bars as auxiliary lights. Auxiliary lights come in three categories: fog lights, running lights, and off-road lights. These lights can improve visibility, but are not as necessary as headlights.
So, in such states that only two auxiliary lights are allowed, maybe you could only use a pair of fog lights on the road.
Most states also have rules about where to install. That is mostly to distinguish fog lights from off-road lights.
Most people use lumens to measure light output. That means off-road lights advertise the lumen output of their lights. Unfortunately, most states define their legal restrictions by candlepower.
One of the few interstates consistency is the restriction on color. The forward light must not be blue, red or any other color associated with the legal institution. They also can't flash or rotate. Many states stipulate that lights be clear white.
In the United States, amber is used for turn signals, red for taillights or warning lights, and white for headlights.
Light bar laws of each state
Alabama Off-road lights are limited to two glare-free cowl or Fender lamps
Alaska The front of a car is limited to four lights. No part of the high intensity light should reach the road surface.
Arizona Any light larger than 300 candlepower (3,771 lumens) must be directed so that no part of the beam reaches the road 75 feet from the vehicle.
Arkansas No auxiliary driving lights could be used on public roads.
California When driving on public roads, off-road lights must be turned off and covered with an opaque lid.
Colorado Auxiliary lights are limited to two and the beam must be directed to the left, within 100 feet from the vehicle.
Connecticut The front of the vehicle is no more than four lights. They cannot exceed 300 candlepower (3771 lumens).
Delaware It allows two spotlights and two headlights. When on the road, the light bar must be turned off.
D.c. All light bars larger than 300 candlepower (3,771 lumens) must be oriented so that no part of the beam reaches more than 75 feet from the vehicle.
Florida Only four lights are allowed in front of a vehicle and must comply with existing light bar regulations.
Georgia Only one spotlight is allowed and cannot be directed at any approaching vehicle. One auxiliary running light is allowed, but it must be mounted on a place 16 to 42 inches above the ground.
Hawaii Lights are not allowed to exceed 2,400 candlepower (30,168 lumens). Light bars on roads must be turned off.
IdahoIf Only four lights are allowed if the power of any one headlight is greater than 300 candlepower (3,771 lumens).
Illinois Could only light up to four lights on the front of a vehicle. All lights must be dimmable and away from the eyes of other drivers.
Indiana Auxiliary driving light is allowed, but they must be mounted on a place 24 to 42 inches from the road.
Iowa Must keep any bright lights out of the eyes of other drivers. Only three auxiliary running lights are allowed in one vehicle.
Kansa The direction of all lights must ensure that no part of the high-intensity beam reaches the road surface more than 75 feet from the vehicle.
Kentucky LED light bars couldn’t be turned on while driving.
Louisiana It's illegal to drive with LED light bars on.
Maine Auxiliary lights should not be brighter than standard lighting device.
Maryland Shall not install more than two auxiliary lights, and mount between 16 and 42 inches above ground level.
Massachusetts It is illegal to drive with an LED light bar on. There are strict regulations for all lighting accessories in the market .
Michigan Shall not install more than four forward lights.
Minnesota Can install up to two auxiliary running lights on 16 to 42 inches above the horizontal plane.
Mississippi Two auxiliary running lights are allowed, but they must be mounted on 12 to 42 inches above the horizontal plane.
Missouri Up to three auxiliary running lights can be mounted on 12 to 42 inches above the horizontal plane.
Montana No light bar can be used on public roads.
Nevada Two auxiliary lights are installed between 16 and 42 inches above the horizontal plane.
New Hampshire Up to three auxiliary running lights are mounted between 12 to 42 inches high.
New Jersey Light bars can be used as long as it is short and lower than the headlight.
New Mexico Auxiliary driving lights are installed 16 to 42 inches above the ground. Must be able to turn off at least 500 feet close to the vehicle.
New York Although not illegal technically, all auxiliary lights must not exceed 32 candlepower (402 lumens). No light bar smaller than 32 candlepower.
North Carolina Light bars must be turned off when driving on public roads.
North Dakota No part of the light can reach the ground 75 feet from the vehicle.
Ohio More than five headlights. High-intensity beams should not reach roads 75 feet away from vehicles.
Oklahoma Off-road lights must not be used on the road.
Oregon Off-road lights can only be used when off-roading.
Pennsylvania Off-road lights must be turned off and covered while driving on highways.
Rhode Island All light bars with more than 300 candlepower (3,771 lumens) must be directed so that they won’t reach the road more than 75 feet in front of the vehicle.
South Carolina All light bars with more than 300 candlepower (3,771 lumens) must be directed so that they won’t reach the road more than 75 feet in front of the vehicle.
South Dakota All lights exceeding 25 candlepower (314.25 lumens) must be directed so that no part of the beam touches the horizontal plane 50 feet in front of the vehicle.
Tennessee No more than two auxiliary lights are allowed, and no part of the beam can be directed at an oncoming driver.
Texas Two auxiliary running lights are allowed, but they must be installed 16 to 42 inches above the horizontal plane.
Utah Any light larger than 300 candlepower (3,771 lumens) must be directed so that no part of the beam reaches the road.
Vermont Aftermarket lights must be approved by the DOT.
Virginia Any light installed higher than the factory headlights must be covered. In addition to the headlights, there may be two uncovered lights. If brightness is turned on, uncovered lights must be set to off.
Washington Two auxiliary lights are allowed, but they must be installed 16 to 42 inches from the ground.
West Virginia All lighting fixtures installed more than 42 inches from the ground must be covered.
Wisconsin No more than 4 forward lights.
Wyoming Light bar is illegal on public roads
Are LED light bars legal in Ontario?
LED headlights, taillights and turn signals are permitted in Ontario and elsewhere in Canada and the United States, and anywhere in North America.
Are LED light bars illegal in Ireland?
HID and LED lights are legal as long as they meet European manufacturing standards and are installed in compatible vehicles.
Are LED light bars legal in New Zealand?
High beams are around 1200 lumens, while retail light bars in New Zealand go up to 32,000 lumens. Light bars can be legally installed on vehicles as long as they are classified as work lights and have separate switches. Generally speaking, they are not allowed to be used while driving on highways.
Are LED light bars legal in U.K?
The law states that, technically, since no law applies to them, LED light bars are illegal unless such vehicles will only be used on private land. However, anyone who buys a new or used car can use the standard configuration installed by LED lights factory.
Illegal neon lights types:
- It is not allowed to install red lights in the front or back of vehicles.
- Any kind of green lights.
- Any type of light bulb or light barthat can be seen from inside or outside the vehicle.
- Any flashing or rotating lights.
- LED lights installed in the vehicle.
Note: The light bar laws in various places may change at any time. Here is just a reference. For more information, please pay attention to the latest laws issued by the local government.