Diode Dynamics 2015-23 Ford Mustang 4th Brake Lights

What's a fourth brake light? At Diode Dynamics, that's what they call an additional brake light, usually mounted lower on the vehicle in an existing lamp housing. It's not too different than the rear fog lamps found in Europe, and their kits provide a unique accent, with extra visibility on the road. Diode Dynamics 2015-23 Ford Mustang 4th brake lights are the ideal solution to give your vehicle a custom appearance with functionality. These kits convert your factory reverse light to shine both bright white and red. Not only do you get an upgraded backup light, but you can also add a red running and brake light, for a unique, modern look on the road. Easy to install, each kit utilizes OEM connectors and wiring harness for a plug-and-play installation that takes minutes, while the embedded circuit protection provides reliable operation. A module, wiring harness, 3157 red/white switchback bulb, and mini screwdriver are included in each kit. Features: * Red running light: The red light comes on at 50-percent brightness anytime you have your parking lights or headlights on, to serve as a rear fog lamp. This provides a distinct appearance at night, complementing the factory LED taillights * 4th brake light: When you hit the brakes, the red light powers at full brightness, to serve as a supplementary brake light, for greater visibility and a unique look * White reverse light: Anytime you're in reverse, the red shuts off completely, so your backup light can illuminate in a crisp, white color. There is no change to the factory reverse function, you just get an improved output from the white LED. Show Less