Lucas Lighting,LED Bulb Switchback 3157 Amber/White
L-3157SB
LED Bulb Switchback 3157 Amber/White
Use these in replacement of a standard 3157 base bulb on turn signal locations. The bulb will illuminate white as a marker or daytime running light until you engage your turn signal, and then it will flash amber like the original bulb.
If used in turn signal applications, may require resistors or replacing the turn signal relay to solve hyper-flash