Installation Steps: 1.confirm the installation position. 2.Use tools to open the gap of the instrument panel 3.place the transparent tube into the gap 4.Cut the length according to the installation location. 5.Connect the optical fiber to the LED then tighten the small screws. 6. Hide wires and LEDs. App Connection Steps: 1. Scan the Bluetooth Controller QR code, Download “Lotus Lantern” APP 2.Turn on APP Bluetooth. 3.Find the corresponding, matching bluetooth 4.Turn on the switch RGB Fiber Optic Voltage Dc:10-16V color: RGB multi-color led-type:5050 Output channel: 4CH/RGBW3CH/RGB operating temperature:-20°c to 60°c Millions of Colors & Dynamic Mode Remote distance : 0 - 10M Phone app control: fit ios and android can choose your favorite mode, such as: fixed color, color bounce or sound sensing mode. TIPS: Please test the light before installation. Please use it under specified voltage. If voltage is higher than limit voltage, components will be damaged. If voltage is lower than limit voltage, bulb will dim and feedback rhythm will slow down. remote control cannot issue commands, so please use it under specified voltage, To achieve original beautiful effect.