Connect switch and assembly. I soldered the wire to the switch, attached it to the base and connected it to the power supply. I cut the end off of the Wall Adapter Power Supply so that I could connect one end to the switch and the other to the LED.
It is important to make sure light doesn’t escape from your enclosure except through the holes in the dome. In order to ensure this I covered the base with black paper.
Secure the LED on top of the base with glue or double-sided tape. Warning: LED is extremely bright.