"http://www.streamlight.com/"

You can just type it and your result looks like this:

Click Here  

Or you can type the words:

Streamlight flashlight

then highlight them like this, which will look like this:

Streamlight flashlight

Then you click on the link button in the editing window--it's the one that looks like a link of chain and it will brighten when you highlight anything:

A pop-up will appear that looks like this:

Paste the URL into the top line, then click on INSERT.  The result will be:

Streamlight Flashlight

Now click on this. The results are the same but which one is more professional?