Generation roof air vent with Atmosphere light For V250 V220 W447 2016-2024 Installation Position: Roof About Lighting: The LED lights can be wired from the to the ceiling vent position, and they come in three colors: Ice Blue, Yellow, and White. This is the matching plug, and the blue wire in the plug is the negative pole, 1.When the positive pole is connected to a white wire, the LED displays an ice blue light; 2.When the positive pole is connected to a yellow wire, the LED displays yellow light; 3.When the positive pole is connected to a white wire and a yellow wire, the LED displays white light; Instructions: this is a screw type product, no sticker,please remove the your roof air vent first these installed need the professional tooling and skill to remove the your air vent,and then put it to the desired area of the car body, Color: As Shown Material: plastic Package Contents: 4pcs x Roof Turbo Air Outlet Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.