"He who marches out of step hears another drum." ~ Ken Kesey
Also, I think it would be wise to not only have the exposure unit, but the wattage as well. I don't know what a lot of these machines have...also, mine has a high and low setting, 2,000 or 7,500.
i added what the screen guy has written down - i believe that all our coats are 2:2 - if i find out different, i will change the value.