Ideal for use in smoke or fog conditions, this filter turns the searchlight's beam yellow. Yellow light causes less eye fatigue when the light reflects off of particles in the air, thereby reducing the perception of glare and increasing the perceived penetration of the searchlight's beam through smoke or fog. This filter attaches to the searchlight using a positive locking technique that requires no threading or tools, making it easy to install or remove a filter in seconds with only a quarter turn.