Perfect for use with our LED sequential taillight kits. LEDs glow white when illuminated. New long base design for tight sockets used in classic cars. Mustang Project LED lamps are specifically designed for use in your classic. The unique shoulder design of these lamps allows them to fit in the very tight clearance sockets of classic cars. Sold individually, 2 needed per car. These work with all Mustang backup lamps1964.5-1970. No changes are needed to your installation. Just plug in the new lamps and go! Whiter and brighter than standard 1142 lamps. Use your existing housings, lens, and all components! A perfect companion with our sequential taillight kits! cooler and more reliable that standard 1142 lamps! Easy to install! Installation is a snap. LEDs ( Light Emitting Diodes ) use less current than the standard Mustang incandescent bulbs relieving stress from your alternator. LEDs last longer and look whiter! No extra components to buy! 4 year warranty!