1961 Ford Thunderbird LED Tail Light Inserts. Here is a your chance to update your tail lights with the new LED technology. It just couldn't get any easier! These tail lights have an astounding 41 super bright red LEDs! 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. These appear stock until you look close. Including the built in reflectors and trim ring. The LEDs are instant on and off. Almost unnatural! Low current so they run cool. Tremendous life span. They measure about 1 3/4" x 5 1/2". The listing is for a pair. You will need the LED flasher for these.