We made it so that you won't need an engineering degree to install your new under cabinet lighting. Simply connect the power supply to a 110-volt power outlet and connect the dimmer switch in between the power supply and the first LED light panel. The LED light panels can be linked together using the interconnect cable or modular connector. Next, secure your new LED panel under your cabinets using screws and mounting brackets. There is no need to buy additional supplies - everything is included in the kit.