Controller for large power pack for our low voltage connectable lights range. Powers up to 1, 000 LEDs & is available in either black or white. The power pack comes with 4 ports that can run separate light strings at the same time. The pack is only supplied with a single multi-function controller for one port. Note: Only 1, 000 LEDs can be run from a single port at any one time. So if your display contains more than 1, 000 then simply use the other ports to continue your display.