(2) 1968 - 1972 Chevy Truck 18 LED Amber Side Marker Lights Polycarbonate Lens with Stainless Trim. 18 LEDs in each light with Epoxy Coated, Fully Sealed Electronics. These lights are marker lights and then get brighter for the turn signal and flasher functions. ( Turn Signal function requires additional wiring ). 3 wire connection ( Black - Marker Lights, White - Ground, Red - Flasher / Turn Signal Lights ). These Lights are impact resistant and less susceptible to shock damage. Each LED Light is water-tight sealed. These LEDs draw less current, generate less heat and are brighter and light faster than an incandescent bulb. 7.7 - 14.0 VDC Input Note: If you are changing incandescent bulbs to these LED lights then an additional LED compatible flasher switch may be required for the Turn Signal Function. We sell both the 2 pin and 3 pin flasher switches in our store.