Bespoke Power 69-73 Cougar & T-Bird electronic taillight sequencer #BP-C9WY-6973. -Adjustable Taillight Sequence timing -LED and/or Standard Bulbs, without additional hardware -Sequencing “on” brake light option -Plug & Play OEM replacement -Top of the line technology and engineering -LED troubleshooting indicators on the board See our others ads for more Ford and Mustang parts & accessories.