Undercar LED tube with sound control 1) Interior LEDs tube with sound control.2) LED lights with acrylic tube.3) The are many colors for your choices: blue, red, pink, purple, white and so on.4) Available sizes: 8'', 10'', 12'', 15'', 18'', 20'', 22'' & 24''.5) DC 12V, with cigarette plug, plug into your car directly.