| 摘要 |
The present invention relates to a power supply device for light elements comprising a power supply unit (12), a first light element (30) having a first color, preferably white, a second and a third light element (34, 38) having second and third colors, preferably for tuning the color of the first light element, and a controllable switch (42) coupled in series to said third light element (38), wherein said series connection of said third light element (38) and said switch is arranged in parallel to said second light element (34). The power supply device is characterized in that said power supply unit (12) has a first and a second output (20, 22), said first light element (30) being coupled to said first output (20) and said second and third light elements (34, 38) being coupled to said second output (22), said power supply unit (12) is adapted to provide adjustable, preferably independently adjustable, output signals at said first and said second output (20, 22), and said second and third light elements (34, 38) and said power supply unit (12) are adapted such that said third light element (38) radiates light when the switch (42) is closed. The invention further relates to a method for supplying power to light elements.
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