Are you lazy? 
Perhaps have you young children? 
No, rather you just a geek...

Whoever you were, this device is the simple way to control your lamp using 
condition of the door.

WTF?
Just imagine that you don't need more toggle the button in bathroom by youself.
All you have to do is just open the door and close one. Everything else will 
make fucking machine.
Your smart home starts here right now, dude...

How does it work?
No magic, no extraordinary gadgets. You will need shit and stick only.
This device is the software-based D- and T-trigger. ORLY?
Further, it is easier.