With Dimming and Delay Function [Product Name]: New Smart LED Daytime Running Light Controller [Product Description]: [Product Voltage]: 12-18V [Working Current]: 5A [Product Size]: Micro 1.7 x 2.1 x 3.9CM [Product Specifications]: The product is small and light. Raincoat. Suitable for all models. With dimming delay function!! [Use wiring mode]: The wiring of this product cannot be described as so simple. There is no need to switch lines, reducing the difficulty of finding the ACC line wiring. The input end (the end with fuse is the end of input) is directly connected to the car battery with a red wire and black wire. The red wire of the output terminal is connected to the positive pole of the LED daytime running light, and the black wire is connected to the negative pole of the daytime running light. The white line is connected to the head lamp (or instrument lamp). When the headlight or instrument lamp is turned on, the brightness of the LED daytime running light will be reduced to half. [Smart Start]: When the car engine is started, the LED daytime running lights will automatically turn on. When the ignition is turned off, the LED daytime running lights will turn off 15 seconds later. [Product function]: This product is applicable to LED running lights and LED daytime running lights. Connecting this kind of line group can realize the installation without breaking wires. It is directly connected to the car battery. The light will automatically turn on when the car is started and turn off 15 seconds when the car stops, which is good for lighting car owners to drive home!