Here it is:
Note that this image is top view, but the relay is upside down, like your pics.
Don't forget to put the diode. When using coils (like inside relay), it's safely.
The lamp you're using has a high current comsumption. So you must use a external power source. DON'T use Arduino power pins to lamp power.
Arduino Pin Out is the same you described in sketch. +5v and GND is from Arduino Power Pin.