All my lights are 6vdc LED's which includes the headlights. I have a solid state turn signal control made by Electro-Tech. I also have an LED 3rd brake light mounted at the base of the rear window in my coupe. This light is wired to the brake and the L&R turn signal control. The turn signals are operated using using a momentary switch mounted under the dash. The cowl lights, tail lights and the 3rd brake light are used as turn signals. The Electro-Tech signal controller has many features such as on time adjustment, audible on signal, turn signal remains on when brake is depressed, and emergency flashing (all lights). Turn signals work when the cowl and tail lights are turned on. I installed the controller inside the drivers kick panel making the turn signal system completely hidden.