Please find a professional to install the product Compatible Focus hatchback 2015-2018.Please check your car model and year before place your order Replace the stock red reflector and function as add-on brake light/tail light and optional sequential turn signal function 4 IN 1 Yellow line: connect the positive pole of the turn signal.Black line: connect the negative pole of the small lamp. Red line: Connect the positive pole of the small lamp Blue line: connect the positive pole of the brake light Improve Looking: Perfectly match with your original car. Provide a unique and fashion decoration style Not suitable for RS Use screws to secure the product.The fixed hole position will be different for each vehicle.So please find professional personnel fixed products. State of the brake：high-light Normal running condition：low-light Left and right turn state：Flow LED Please find a professional to install the product. Connect rear lights Yellow line: connect the positive pole of the turn signal Blue line: connect the positive pole of the brake light Black line: connect the negative pole of the small lamp Red line: Connect the positive pole of the small lamp