lepai Difference(s) between the Lepai amplifier models/versions?

[Elliot B.]

I am looking to replace the stereo unit on the right of the photo at the bottom of this post with a small, cheap amplifier to save space on my desk.

It has been suggested I get a Lepai amplifier.

From what I can tell, there are:

• LP-2020A+
  
• TA-2020A+ (2011 version, 2012 version)
  

What is the difference between them all?

They appear to all be around ?20 shipped from Hong Kong/China from eBay.

I will want one with a power supply included.