Thank you very much for checking the product! Installation is very easy! Just plug it into the cigarette lighter and stick the pre-applied double-sided tape to the foot area of the seats. You can make the LED lights flash brightly or glow softly in time with the music! If you'd like, please purchase it now! Car LED Illumination Light Product Information -------------------------- ・Voltage: DC12V ・Power consumption: 10W ・LED strip light 1 unit (9 LED lights) x 4 units ・Cable length Front seat: 100cm x 2 Rear seat: 150cm x 2 ・Remote control x 1 Test coin battery included 8 colors of lights will illuminate the interior of your car in time with the music for night drives! If you use it on family trips, dates, or when returning from outings, your children will be happy, and you can create a good atmosphere with your partner, making night driving more enjoyable! The remote control settings include: ・Single color emission, ・Random emission ・Random fade-in, fade-out emission ・Emission in time with music and various other patterns. 【Installation method】 Please attach it to the foot area of the seats and use it as floor lights. Before attaching with double-sided tape, clean off any dirt or dust. Please note that the wiring lengths for the rear seats and front seats are different. Then, just plug the power into the cigarette socket. ※Caution※ Be sure to install it at the foot area. If you install it in a higher position, the LED light may leak outside the car, which could be a violation of the "Road Traffic Law." When the red light is on while driving, it may be mistaken for brake lights, and when the white light is on, it may be mistaken as tailgating by oncoming or preceding vehicles. This could lead to "traffic accidents" or "being mistaken for aggressive driving." Please install it in a position where light does not leak outside the car as much as possible. Thank you for checking the product description. If you wish, please purchase it now!