Brake Lights Built into Brake Pads

[Porkchop]

Does anyone have any experience with brake pads that have integrated LED's in them that light up when you apply the brake ? If so, please post feedback as to weather or not they are really worth having. I have a brake light that I don't like to well. I just became aware of these pads that have lights built into them.
THANKS !

 

[unior]

link?

 

[GearNut]

Link:
http://www.xxcycle.com/brake-pad-and-promax,en.php