I come from an adventist background and most if not all events about Ellen White are fake. Ive never believed her as supernatural or haveing the 'gift of prophecy and I have had many arguements with ministers in the past. She had one vision where she saw the planets in our solar system described them and the number of moons they had. It so happened the planets had the exact number of moons they had at that time discovered but the information is currently outdated. Did God know how many moons around jupitor or did he only know the number of moons there because the telescopes on earth are not powerful enough?
Ellen white got all her information out of books that were currently available at that time.
The theological truth that did come out of adventist theology is premillienilism because many of the churches believed at that time in postmillienilism which has since been consigned to the scrapheap.