HDL modules for lighting, whether light-emitting diode lamps (LED), incandescent lamps, halogen lamps, fluorescent lamps, compact fluorescent lamps (CFL), or cold cathode fluorescent lamps (CCFL). Control using leading edge (TRIAC) dimming, trailing edge dimming, 0-10V / 1-10V dimming, DALI dimming, DSI dimming, or DMX dimming / colour mixing.