I have mine on my most southerly facing wall… but at about 30 degrees from vertical mainly to prioritize the winter sun. I did make it so they're adjustable if I want but never have… Mostly the snow falls off but not always. Usually just have to tap them with a long pole to avalanche them...
The LV 6548 is an older model. If you check back on this thread you’ll see that the MPP Solar inverters (and Growatt) are actually made by Voltronic. They usually announce new product before either of the other two and haven’t published any news since April - and that wasn’t a 6548 variant...
Here's the 'latest'...
'There may not be a conflict after all' in expanding universe debate
https://phys.org/news/2021-06-conflict-universe-debate.html
From what I've seen of the user documentation they are providing it is certainly a new high bar - so now we have to see if the product quality matches it. Would be something for Will to review!