Astronaut usb light

Where is the buy button....

Here's the link! http://www.amazon.com/gp/aw/d/B00FGWM8Y8?cache=1390753008&pi=SX200_QL40#ref=mp_s_a_1_1&precache=1

I would maybe attach it to one of those usb wall plug-ins. My laptop already emits enough light.