1933-1936 Ford 12 Volt LED Tail Light Inserts. Here is a your chance to update your tail lights with the new LED technology. These 12 volt tail light inserts have 19 red LEDs. There are 5 white LEDs for the license plate light. They use epoxy coated, fully sealed electronics on solid state circuit boards. All the LEDs light up for tail lights and all get brighter for stop/turn. The LEDs are instant on and off. Almost unnatural! Low current so they run cool. Tremendous life span. They measure about 3 1/2" od. The listing is for a left and right. You will need the LED flasher for these.