I have a USW 8 150w and two USW 8 60w, can I use the two SFP ports on the USW 8 150w to connect to my two USW 8 60w switches that don’t have SFP ports? I trying to free up two ports on the USW 8 150w for use.
I have not tried those, but they should work
Awesome Tom and thank you once again, I’m running out of space and I may eventually have to upgrade to the new UniFi 16 port switch, but until then this will work. 
Have a continued good day.