Underbody lights, also known as low-glow lights, are non-standard LED or neon lights that are attached to the underside of the body of a car, SUV, or truck. Fluorescent neon lights or led lights are particularly popular with aftermarket car dealers and owners who, among other things, want to improve the appearance of a car. It offers an attractive safety feature, especially for motorcyclists who ride at night, helping them worry less about being hit by other vehicles.