Tekonsha 119177 - ModuLite® HD Protector w/Integrated Circuit & Overload Protection & 5-Flat ConnectorDoes your trailer have multiple tail lights or does the tail lights seem dim to you? Then it is possible you need a Modulite from Tekonsha. The Tekonsha Modulite product line has power modules designed to virtually eliminates additional electrical draw on the vehicle's tail light circuits. They help to ensures maximum trailer light brightness for your trailer tail lights. It powers the trailer's stop, turn, tail and running lights without overloading