The SCA beds are ETS beds. For what you need them for, to last the year, they will be fine. I would concentrate replacing them at the end of the next season, once you are established. The Starflight is made by
uwe. A German bed, and good performer. Depending on the age, in time you may want to replace it, though, that should be your last concern. It has 140w
lamps and true 140w ballast. You may want to replace the
lamps in all the beds as the new season begns.
Have you considered what beds you would purchas when time? I would suggest; Sontegra,
uwe, or Future Line. Though there are many more top performers, I find the mentioned three offer the quality, selection and more important service to be profitable.