This is the "LED Light Ambient Light Illumination Ribbed 6m Cigarette Lighter Connection Light Source 6 Pieces." It can be used simply by connecting to a cigarette lighter for power and inserting the wires into the gaps of the interior panels. There are 6 light sources, so you can insert them at the tips and extend the wires to various places. By scanning the QR code on the top of the controller, as seen in the last image, and downloading the app, you can make various settings from your smartphone. (Operable by feel) 【Product Details】 Color: Black Size: Short wires approx. 190cm x 4, Long wires approx. 390cm x 2 Transparent core wire approx. 600cm, Transparent rib approx. 600cm Total weight: 382g *The wires to be passed through the ribs are also about 5cm to 10cm longer than 6m. Please note that there may be some variation each time. *Since we have measured the actual product directly, please understand that there may be slight errors. Also, please check the last image as it is a picture of the actual product.