A rear collision warning device for trailers that may include one or more sensors, a control circuit, and one or more warning devices. In one aspect, the sensors are configured to monitor a predetermined zone behind and/or alongside a trailer and to optionally trigger warnings as predetermined…

A lamp for the rear of a vehicle is disclosed with a light transmissive cover having a red first illuminated surface area and a clear second illuminated surface area. It has a first LED light emitter located directly beneath the red first area, a second LED light emitter located directly beneath…

A cable system for a truck trailer for reducing the number and/or size of wiring in a commercial trailer cable system from seven to four, three, or two, while also facilitating bidirectional communication with all connected electronic devices in the trailer. The cable system has a ground cable, a…