Traditional Culture Encyclopedia - Traditional festivals - I want to ask about an intelligent switch or intelligent light, which is described as follows:

I want to ask about an intelligent switch or intelligent light, which is described as follows:

How can I put it? There is such a lamp in my shop, which is the bedside lamp. What happened? Let me tell you something!

First turn on the switch, and then there is a small knob on the light. If you turn it to the right, it will get brighter and brighter. This is because the installed bulb is tungsten wire, so the brightness can be adjusted. If an energy-saving lamp is installed, any switch will have no effect! So I dare say that the light you see is definitely not the light of energy-saving lamps!

And I have never sold such a switch, so I think it is a lamp!