| 摘要 |
The outdoor lighting fixture of the present invention provides a solar powered lighting fixture having one or more light emitting diodes whose luminance or brightness may be selectively adjusted by the user. The outdoor lighting system includes a dimmer switch mechanism in its electronic circuitry that allows a user to vary the luminance of the emitting diodes. In one embodiment, the dimmer switch mechanism modulates the pulse width of electricity provided to the one or more light emitting diodes. In another embodiment, the dimmer switch mechanism modulates the frequency of the one or more light emitting diodes. By adjusting the brightness of the light emitting diodes the operational time of the lighting fixture may also be modified.
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