LIGHTING SYSTEM POWER ADAPTOR

摘要

A power adaptor for a lighting unit, comprising an input for coupling to an electrical power supply and a controller adapted to monitor the input and operable to provide at least two independent electrical outputs; each output having a power level based on an amount of power available at the input. The independent electrical outputs may be used to supply and control an intensity and/or color characteristic of a solid state lighting unit; comprising at least two separately controllable colored emitters.