New Marker Lights on Cottrell Equipment Effective August 2013, there will be a new style marker light on Cottrell equipment. The new LED “button” light will provide superior visibility and is PC rated so it will be used in all marker light positions. Also, there will be a much added maintenance benefit as the light will be grounded through the main wiring harness. Please contact your sales representative for more information on this new, standard feature. Our Expertise is your Advantage on the Road!