Maybe I do not need it (bitter smile) I can change with brightness, but since LED is consuming electricity it does not have to save electricity (bitter smile)
Convenient for dimming in car interior LED lighting
From Japan
On 2015-04-02 17:04:00
Since the LED illumination inside the car was too bright, it became convenient as it was able to dim the light to the desired brightness. However, as it gets darker and darker, it goes out completely at some point, so the adjustment range is somewhat narrow.