Patent ID: 11893868
Assignee: VAXCEL INTERNATIONAL CO., LTD.
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC G  F  H  Y | IPC F  G  H

Claim 49:
50. The method of configuring an LED lighting device with a tunable diffused light color temperature according to claim 39, wherein the diffused light color temperature switching scheme comprises at least a high diffused light color temperature performance, a low diffused light color temperature performance and a medium diffused light color temperature performance, wherein for performing the high diffused light color temperature performance, the second semiconductor switching device is fully conducted and the first semiconductor switching device is completely cut off, wherein for performing the low diffused light color temperature performance, the first semiconductor switching device is fully conducted while the second semiconductor switching device is completely cut off, wherein for performing the medium diffused light color temperature performance, the first semiconductor switching device and the second semiconductor switching device are both partially and complementarily conducted such that the total light intensity generated by the light-emitting unit remains unchanged.