I was just reading the posting guidelines in the general electronics forum, and it mentioned several items that are not allowed for discussion. One of them is a transformer less power supply. Another is LEDs to mains. I'm just wondering what these two items are. I mean, what about a power supply that doesn't have a transformer makes it something that shouldn't be discussed? Also, what is meant by LED to mains? As in plugging a LED directly into the wall?
I'm not being critical in any way of the guidelines. I just don't know what these two things are so I don't know what their significance is.
Thanks!
I'm not being critical in any way of the guidelines. I just don't know what these two things are so I don't know what their significance is.
Thanks!