Tekonsha ZCI™ Zero Contact Interface Universal ModuLite® - Universal Trailer Light Power Module

The Tekonsha ZCI™ Zero Contact Interface Universal ModuLite® trailer light power module eliminates the complexity and electrical risk of traditional trailer wiring by using proprietary ZCI sensor technology to detect your tow vehicle's lighting signals without making any direct connection to its electrical system. This universal trailer light power module works seamlessly with both 2-wire and 3-wire trailer systems, making it the ideal solution for boaters and anglers who want reliable trailer lighting without rewiring their vehicle.

The ZCI sensor technology isolates trailer light operation from your tow vehicle's electrical system entirely, preventing interference, voltage drops, and the electrical faults that can plague traditional splice-in systems. Since no cutting or splicing of vehicle wiring is required, installation is non-invasive and the ModuLite® unit connects directly to your tow vehicle's 12-volt battery, delivering clean, stable power to your trailer lights every time. This approach preserves your vehicle's warranty and eliminates the common problem of trailer lights dimming under load or causing electrical gremlins in the tow vehicle's control modules.

This universal trailer light module is purpose-built for boat owners, RV operators, and anyone who tows a trailer equipped with standard lighting. Whether you're running a fishing boat to the ramp on weekends or managing multiple towed assets, the ZCI eliminates the guesswork around electrical integration. The compact 4 x 4 x 7-inch housing mounts easily in an engine bay or battery compartment, and the 12-volt only specification ensures compatibility with the vast majority of automotive and marine tow vehicles.