Abstract: A lighting system for an open vehicle such as a motorcycle or snowmobile incorporating the main headlight which is rigidly secured to the vehicle, and an auxiliary headlight detachably mounted on the safety helmet worn by the vehicle operator and detachably connected, by electrical circuit connecting means to a mutual power source carried on the vehicle and simultaneously operable by the main lighting switch located on the vehicle for easy access by the vehicle operator, to project an auxiliary beam of light in conjunction with the beam of light projected by the main headlight. The auxiliary headlight is capable of projecting the auxiliary beam of light in a plurality of directions independent of the direction of the beam of light of the main headlight. The main headlight and the auxiliary headlight are spaced apart so as to project two distinct separate sources of light when viewed from a remote location.