The LED itself turns on in the dark

The use of threaded rivets makes it possible to obtain a detachable connection, which is very convenient in certain situations. To install threaded rivets, you can use the manual retainer, which is easy to do with your own hands. For the manufacture of this homemade product you will need a piece of thick metal in which you need to drill a hole: on the one hand a larger diameter, and on the other hand a smaller one. Read More