I don’t know, whatever the default settings are, I didn’t change anything. I didn’t try and measure it while it was running but did take a photo of the grid inside, someone with experience would have a better guess than me.
All I did was tape the mirror to the bed, no cement or anything else. I had this https://www.3m.com/3M/en_US/company-...3194146&rt=rud because it doesn’t leave any adhesive behind upon removal may not be the best but it worked.