I'm repurposing an enclosure I obtained from a research institution that shall remain nameless.
I discovered the bonus of using a Dremel tool to make holes in a circuit board. Quick, easy, and accurate. I made a pair of slots to anchor the DC output cable.
I'm using a 3-phase 4-core cable to carry AC to the PS, and 6V DC back to the light.
Although it will be rather invisible, I'm going to put an indicator on the front panel. The wire is rather fragile, so I think I'll invest in a bit of Veroboard to make the connection.