Abstract: A modular, standalone, and multi-functional electronic and mechanical platform for light-emitting diode (LED) lighting applications that has continuous and adjustable color temperature (CT) is provided. In particular, a modular LED device is utilized as a standalone lighting device or, alternatively, as a universal and generic building block for forming lighting devices for lighting application. The modular LED device includes an LED circuit, a digital signal processor (DSP), a network interface, and a power supply that can be packaged in a compact, thermally controlled housing. Additionally, the housing can provide alignment and fastening mechanisms for easily coupling one modular LED device to another modular LED device.