68 Super Bright Red LEDs Complete with Polycarbonate Lens Fits Both Left Hand & Right Hand Features Sequential Operation with Selector Switch to Select Sequential Left Sequential Right or Sequential Function OFF Features Sequential-Once Brake Attention Function Epoxy Coated Fully Sealed Electronics 1157 Plug Solid State Circuit Boards are Designed for 7.7-14.0 VDC Sold individually. Two needed per vehicle.