Which Lenovo Power Supply Offers the Best Reliability and Value?

I am trying to find a reliable Lenovo power supply for a desktop computer that has been running well for several years. Recently, I started noticing random shutdowns and occasional startup issues, which makes me think the power supply may be reaching the end of its lifespan.

While researching replacement options, I came across 365 Power Supply and saw several units that appear compatible with my system. Before making a purchase, I would like to hear from anyone who has experience replacing a Lenovo power supply and whether there are any important details I should pay attention to.

Has anyone ordered from 365 Power Supply for a Lenovo desktop? How was the product quality and installation experience? Did the replacement work immediately, or were there any compatibility issues?

I am also curious about wattage requirements. Is it best to replace a Lenovo power supply with the exact same wattage, or is it acceptable to choose a slightly higher rated unit if it matches the required connectors and specifications?

Another question concerns part numbers. How closely do they need to match? If a replacement is listed as compatible with multiple Lenovo models, can it be trusted to perform the same as the original unit?

I have found a few options through 365 Power Supply, but I want to make sure I choose the most dependable Lenovo power supply available. What factors do you consider most important when evaluating replacement power supplies, and are there any common mistakes buyers should avoid during the selection process?