Abstract: The present subject matter relates to headlight bulb devices, systems, and methods for vehicle headlights in which a headlight bulb assembly includes a bulb mounting collar configured to be engaged with a bulb base cavity in a housing of the vehicle headlight; a bulb body comprising one or more LED element, wherein the bulb body is configured to be coupled to the bulb mounting collar, and wherein the bulb body is rotatable to a range of angular positions relative to the bulb mounting collar; and a tension spring configured to apply a biasing force that acts to retain one or both of the bulb mounting collar or the bulb body in a desired position with respect to the bulb base cavity.

Abstract: Cooling systems for LED headlight bulbs are disclosed. In some examples, a headlight bulb assembly for a vehicle headlight includes a circuit board and a first light emitting diode (LED) on the first side of the circuit board and a second LED on the second side of the circuit board. The headlight bulb assembly includes a shell at least partially enclosing the circuit board. The shell defines a sealed interior fan housing, an air intake on the first side of the circuit board, and an air exhaust on the second side of the circuit board. A circulator fan in the sealed interior fan housing is configured to draw air into the sealed interior fan housing through the air intake. The circulator fan is configured to expel the air from the sealed interior fan housing through the air exhaust.

Abstract: A vehicle light assembly includes auxiliary lighting. The auxiliary light includes a base that may comprise a circuit board and a heat sink material. A series of auxiliary lights, such as LEDs, are attached to the base. A fastener extends through a mounting hole in the base to attach the base to the vehicle lighting shroud or trim. The auxiliary lights may be in an annular array, typically called a halo, or in numerous other linear or geometric shapes.