Need help with HPS fixture.

I recently purchased a high pressure sodium lamp for my garage. It has 2 wires white and black. I already know white is neutral and black is hot. I'm trying to connect it to an old computer psu cord. It has brown, blue and green wires and a shield. I connected black on the lamp to brown on the cord, and blue on the cord to white on the lamp. Doesnt have a ground wire on the lamp fixture. I just wanted to know if I wired it correctly. Thanks in advance.

That sounds right. Brown (live) and Blue (neutral) are the normal European colours. Earth is often green/ yellow.

Why an antique sodium lamp?, what's wrong with a modern LED one? - far more efficient and reliable.

I only bought them because they were like $5 at a garage sale

RayRay1132 said:

I only bought them because they were like $5 at a garage sale

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Do they still work?, a lot are ripped out because they have died.

However, it's a false economy due to their much higher running costs and slow warm up time.

Yep, I plugged them in last night, and they all work. However, I suspect the bulbs are going bad, as they keep cycling after warm up.

The lamps sound dead.
Sodium lamps as they burn the voltage required to maintain the arc increases, eventually to a voltage higher than the supply and they go out, at which point they cool down & then the ignitor fires it up again.
Looks like you have duds.