Abstract: The invention relates to a safety lighting device for use on a snowmobile. The safety lighting device includes a light emitting diode for providing illumination, an energy source for providing a current, a switch for controlling electrical connectivity between the light emitting diode and the energy source, and an energy source mounting assembly for holding the energy source on a snowmobile. The light emitting diode preferably provides a luminous intensity of at least about 1,000 mcd at 25° C. and a forward current of 20 mA. The energy source preferably provides a current of between about 1 and about 5 volts. The energy source mounting assembly preferably includes a first surface constructed and arranged for mounting to a snowmobile, and a second surface constructed and arranged for holding the energy source. Preferably, the energy source is either an alkaline battery source or a lithium battery source. It is expected that two size AA lithium batteries will meet the requirements of the present invention.