Yes it’s made by Big Blue, but I managed to dig up some specs for it and turns out it’s actually significantly *heavier* than the 28W version, I don’t know why, maybe it’s older model based on older tech, but whatever the reason, it’s not interesting at all in the end.
Looks like at least the Big Blue might have actually benefited from multi-port testing given how close it came to matching (or even overcoming) the listed amperage? Would be interesting to know if the larger size does give you anything more than just coping better in less than optimal light conditions. They’re also selling 21W version with listed 3.8A total output, which seems to be higher than any other 21W panel I’ve seen, would be good to see that one tested to see if it is actually more powerful than other 21W panels, might be a great weight/power combo if there’s anything to that.