A powerstrip that is remote controlled by an app on an Android device
link to Android App to switch light on and off
modified source code for the arduino
Parts list:
A breadboard
some jumper wires
a usb powersupply
a usb cable
a powerstrip
Pictures and video to better illustrate:
Notes: I didn't have time to finish implementing my own Android app for this project yet. Future plans include adding another lamp and an aquarium to the same app.