OPT7 Aura All-Color LED Underglow Lighting Kit with SoundSync Music - 4 Rigid Aluminum Waterproof Glow Bars 4pc Aluminum Kit: (2) 48" light bars with 72 LEDs each and (2) 36" light bars with 54 LEDs each Access to a Full Spectrum of Colors with Advanced Dimming Controls Exclusive SoundSync&trade; bass-activated technology lets you visualize the beat Our SmartColor&trade; LEDs mix colors at the micro level that results in a brilliant colors true to the eye Two Ways to Power: Car charger adapter or Plug-n-Go&trade; fuse tap connectors (all included)