Check the listing for details. Pair of 4" Round Stop, Tail Turn Lights With Reverse & Warning Light Functions. Condition: New. Listed at 158.00 USD. One Pair of 4" Round Stop, Tail, Turn Lights With Backup & Flashing Light Functions Product Details:Manufacturer: Pro LEDPart Number: 4CMBKTCondition: NewTwo 4" Round Stop, Tail, Turn Lights With Backup & Flashing Light Functions (Rubber Grommets Included)DOT ApprovedVoltage: 12 Volt DCLens: Clear PolycarbonateLEDs: 40 SMD LEDsStop Tail Turn Color: RedBackup Light Color: WhiteDual Warning Light Colors: Amber/White (If White Flash Is Not Wanted, Dead End The Purple Wire For Amber Flash Only)Wiring: Seven Wire PigtailWiring Functions:Red = (+) Stop/TurnBrown = (+) TailWhite = (+) ReverseBlack = (-) GroundBlue = (+) Warning Color Amber (If White Flash Is Not Wanted, Dead End The Purple Wire)Blue + Purple = (+) Warning Light Dual Color Amber/White Alternating FlashYellow = (-) Touch Yellow Wire To Change Flash Patterns. Less Than 1 Second Changes To The Next Pattern. Between 1 & 3 Seconds Changes To The Previous PatternFlash Patterns: Single Flash, Double Flash, Triple Flash, Quad Flash, OFFCertifications: SAE Class 1, FMVSS 108, IP67