Notice the air nozzle in picture (below) mounted above oval tail light. Truck & Trailer Specialties has developed an air system that directs compressed air across tail lights on snow plow trucks to keep them snow free. There is also a washer option utilizing the same nozzle so not only do you blow compressed air across the light but also windshield washer solvent. The air system is equipped with a programmable solenoid providing the ability to program time interval between air applications and length of applications. T&TS is putting together a kit with parts number and pricing. When this is completed, the information will be posted on their website at: http://www.ttspec.com/
With winter getting started, it’s a great safety item to keep snow and ice from building over tail lights.