2Pcs 4 Round Dual White/Red Stop Tail Turn Combo Light -- Standard 3 Prong Pigtail and Extra Wire with Male Projectile Plug are included -- Dual Color Revolution Light With 19 Diodes -- Rubber Grommets and wire pigtails are included for complete mounting -- Uses the Same LEDs for Each Color Depending on its Function -- Red LED Output Functions Only as Stop/Tail/Turn Light -- White LED Output Functions Only as a backup light or reverse light Easy to install: Just Plug in a standard 3-prong pigtail for Red Stop Turn & Tail application. And an extra wire with a male Projectile plug is provided for White back-up application