FIG. 40 illustrates a method of controlling the LED driver systems herein disclosed to control and/or power accessories via a bus and/or optional port. The method 4000 can include providing an LED driver providing a regulated LED current to one or more LEDs, where the LED driver includes an energy storage device, and a bus, the bus coupling a voltage regulator circuit, a voltage to current converter, and an energy storage management system, where a master controller of either the voltage regulator circuit, or the voltage to current converter controls the bus (Block 4002). The master controller can also control charging and discharging of the energy storage device through the energy storage management system (Block 4002). The master controller can also control regulated LED current via control of the voltage to current converter (Block 4002). The method 4000 further including coupling one or more accessories to the bus (Block 4004), and providing power (low voltage, high voltage, or both) to the one or more accessories via the bus from either an AC mains, the energy storage device, or both (Block 4006). The bus can also provide data communications between the energy storage management system, the voltage regulator circuit, and the voltage to current converter (Block 4008), while optionally also providing data communications between the one or more accessories, the energy storage management system, the voltage regulator circuit, and the voltage to current converter (Block 4010).
