Statistically, nearly all mid-air collisions happen below 10,000 feet and within 10 miles of the airport. In an effort to be more visible, Collision Avoidance Lights are an excellent option. Johnson Aviation Products' CAL lights give you instant recognition to other aircraft and also to the control tower operator. Turn them on anytime so that you can be seen more easily by other aircraft. Upgrade to the Whelen Parmetheus LED bulb to increase light output to 250,000 candle power.