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 59:
60. The LED lighting device configured with a tunable diffused light color temperature according to claim 52, wherein a photo sensor and a motion sensor are respectively and electrically connected to the controller; wherein at dusk when a light intensity level of an ambient light detected by the photo sensor is lower than a first predetermined value, the controller operates to control the LED driver circuitry to deliver an electric power to the light-emitting unit to perform a first illumination mode characterized by a first diffused light intensity with a first diffused light color temperature for a first predetermined time duration, wherein when the light intensity level of the ambient light detected by the photo sensor is higher than a second predetermined value, the controller operates to turn off the light-emitting unit, wherein when a motion signal is detected by the motion sensor, the controller operates to control the LED driver circuitry to increase the electric power delivered to the light-emitting unit to perform a second illumination mode characterized by a second diffused light intensity with a second diffused light color temperature for a second predetermined time duration.