LEDGlow's Replacement Expandable Million Color Golf Cart Junction Box will replace the existing junction box used on your current generation Expandable Million Color Golf Cart Underbody Light Kit. This junction box features 12 ports for designated for underbody, wheel well and interior tube connections, as well as a 12 pin port used for the connection cable that links the control box to the junction box. This replacement junction box is only compatible with the current generation Expandable Million Color Golf Cart Underbody Light Kit (LU-GC-M40.1).