This is the cabinet light assembly for the 30721 only.

Blast Cabinet Light Wire Connections:

WARNING! Attaching the wrong wires to the wrong switch lugs will burn out the circuitry in the fluorescent Lamp.

The BROWN wire spade connector MUST be attached to the switch lug adjacent to the pre-attached GRAY wire (this is the bottom switch lug).
The BLUE wire spade connector MUST be attached to the switch lug adjacent to the pre-attached BLUE wire (this is the upper switch lug).