Poser Question.

So its almost full on spring and time for me to get the bike back out of storage and get it ready for this year.  But I do have a problem.   There is a part I need to replace but the issue is that I don't know what it is called.  I have  never been mechanically inclined to begin with.  I have been looking through the intranet tubes and I can't find out what it is called so I can even order it online.  So I thought I would turn to the masses.

What it is is a small black relay looking item that is directly under the start/kill switch.  It turns on the brake light when you squeeze the front brake level.  I can't figure out what the hell it is called.  Anyone able to tell me what it is or even a decent webpage to order it from. 

This is what Iget for getting a bike without a owners manual.

Thanks for any help.

~noob.