Talesun Solar Panels

[Marty]

Tier 1 means very little Vic. You’ll be hard pressed to find a panel that isn’t tier 1 being sold in Australia.

See more here:

What's the difference between Tier 1 solar panels and others?

How can we physically verify the difference between a Tier 1 panel and other less efficient ones assuming all panels are not labelled? Every manufacturer is claiming Tier 1.