recommendations for a 220v ac to dc 8v variable power source on a din rail

Hello Forum Members,

I'm currently working on a project that involves powering five 7-segment displays with an 220v AC to 8V DC module on a DIN rail. I'm looking for recommendations on a suitable variable power supply, and I'd prefer to make the purchase on Amazon for convenience.

If anyone has experience or suggestions on specific products that would work well for this setup, I would greatly appreciate your guidance.

Thank you in advance for your help!