A controller configured to power and control a behavior of a system of lights, one or more of said lights associated with each of a plurality of lighting modules (304, 1804, 1806; 2104, 2204, 2600, 2700, 2800, 2900), each of said lighting modules serially addressable over a two-wire communication network, said controller comprising: a processor (1512, 2014) configured to output a control signal corresponding to command and address data that is capable of uniquely addressing each of said lights; a user input device (210, 310) communicating with said processor and configured to accept user input and to output information to said processor; characterized in that said controller further comprises a core and coil transformer (322, 402, 1402) configured to transform a primary AC signal to a sinusoidal power signal; a rectifier circuit (332, 400, 1400) configured to receive the sinusoidal power signal and configured to determine the phase of the sinusoidal power signal to form a rectified sinusoidal power waveform; and a bridge circuit (900, 1400, 1720) communicating with said rectifier circuit and said processor and configured to receive the rectified sinusoidal power waveform and the control signal corresponding to the command and address data, and to output a data encoded power signal to control said behavior of said system of lights, said data encoded power signal forming a sinusoidal waveform between zero crossings; wherein the bridge circuit (900, 1400, 1720) includes a plurality of transistors (904, 906, 908, 910; 1404, 1406, 1408, 1410; 1722, 1724, 1726, 1728), the plurality of transistors communicating with said processor to receive the control signal having first and second states, the control signal enabling at least one of the plurality of transistors when the control signal is in the first state and enabling at least one of the others of the plurality of transistors when the control signal is in the second state, the bridge circuit outputting said data encoded power signal by outputting the rectified sinusoidal power waveform having a first polarity when the control signal is in the first state and outputting the rectified sinusoidal power waveform having a second polarity when the control signal is in the second state. a processor (1512, 2014) configured to output a control signal corresponding to command and address data that is capable of uniquely addressing each of said lights; a user input device (210, 310) communicating with said processor and configured to accept user input and to output information to said processor; characterized in that said controller further comprises a core and coil transformer (322, 402, 1402) configured to transform a primary AC signal to a sinusoidal power signal; a rectifier circuit (332, 400, 1400) configured to receive the sinusoidal power signal and configured to determine the phase of the sinusoidal power signal to form a rectified sinusoidal power waveform; and a bridge circuit (900, 1400, 1720) communicating with said rectifier circuit and said processor and configured to receive the rectified sinusoidal power waveform and the control signal corresponding to the command and address data, and to output a data encoded power signal to control said behavior of said system of lights, said data encoded power signal forming a sinusoidal waveform between zero crossings; wherein the bridge circuit (900, 1400, 1720) includes a plurality of transistors (904, 906, 908, 910; 1404, 1406, 1408, 1410; 1722, 1724, 1726, 1728), the plurality of transistors communicating with said processor to receive the control signal having first and second states, the control signal enabling at least one of the plurality of transistors when the control signal is in the first state and enabling at least one of the others of the plurality of transistors when the control signal is in the second state, the bridge circuit outputting said data encoded power signal by outputting the rectified sinusoidal power waveform having a first polarity when the control signal is in the first state and outputting the rectified sinusoidal power waveform having a second polarity when the control signal is in the second state.