| 摘要 |
<p>According to the invention, a lighting apparatus is provided having a dimmer module. The dimmer module has an input device with a plurality of positions, each position for regulating the light to a predetermined brightness. The input device may be e.g. a turning knob with a potentiometer. The dimmer module further comprises a rectifier for rectifying an alternating voltage in accordance to a position of the input device. The lighting apparatus has a master module which interprets brightness control information of the dimmer. The master modules outputs a supply voltage as well as a brightness control voltage a direct current voltage in accordance of the position of the input device. A first slave module is provided for receiving the supply direct current voltage as well as the brightness control voltage. The first slave module provides a current through a first plurality of serially connected light-emitting diodes, the strength of current depending on the brightness control voltage direct current voltage. At least one of the light-emitting diodes emits light of a first colour and at least one of the light- emitting diodes emits light of a second colour.</p> |
