These are drop-in replacement switchback marker lights for theFourth 4th and Fifth 5th generationRam mirrors. These willilluminate as a white LED strip during running light mode, and flash as an amber LED strip during signal mode. They are offered with a smoked or clear lens, and the included wiring harness makes installation easy (links to videos are below). Completely plug and play for those with 5th Gen OEM tow mirrors (2500/3500 only)

These lights operate as follows:

• Signal (No Running Light): Flashing Amber Signal
• Running Light (No Signal): Solid White Strip Light

• Running Light On & Signal Activated: Solid white light turns off during signal and amber light flashes until signal is complete. After signal is complete, white light illuminates again