 Hey guys, I just built this little circuit here, it's a little, I'll show you. There we go, we've got a little 555 timer. Turn that once that goes down. It's mainly a little dim switch from the LED. Well, the part I'm curious about is, as you can see up here, I turn that's on full. Of course, as you'd expect, as I turn it down, you get more and more of a negative. This is the interesting thing, I turn it on full. And then, as you can see, well, if you can see that, it says 9 mini-volts. So that's on full, so the LED's on full. When I start turning it down, it's 32 mini-volts to have it dimmed. I'm not sure exactly why that happens. I'm just wondering. But it's such a simple little circuit. I just want to go off the internet. I can show you it. Just bear with me a second. Here's the circuit. Just another one of those quick little circuits to build in. I've got some of these in the post to be, which is making my life, especially if I don't just tip them out everywhere. It's making my life a lot easier. Four building things on these socket boards. So hopefully, I'm going to be doing a whole bunch of little circuits like this. It does have a practical value, I suppose, because it's an LED dimmer. Sometimes I could put some different colour on these. Or I'm going to figure out why, because it's higher resistance, it draws more current. I'm not sure. So that's pulse width modulation, LED dimmer.