dimming lights

 2.3.1 dimming lights

LED Downlight

Generally, street lights after midnight there is nothing useful, so the usual practice is to turn off the lights after 12:00 or the opening half brightness. But the most reasonable approach is based on the traffic lights to control the brightness, or even fully adaptive control of brightness. Figure 10 is a statistical value based on local traffic lights to adjust the brightness of an example.

  LED Strip

Figure 10: According to the statistical value of traffic to intelligently adjust the brightness of lights

In order to achieve this intelligent dimming measures actually very simple. As long as the value of the region's traffic counts curve input to a microcontroller, according to this curve gives the PWM dimming signal to the constant-current drive source can be achieved.

GU10

2.3.2 photosensitive automatic dimming LED lights

In strong sunlight in order to reduce unnecessary lighting, you can use light-sensitive auto-dimming LED lamp (or any other LED lamps). It is a block diagram shown in Figure 11.