This video is for older Elon 100 units up to August 2019. See this page for a user instruction video for the new Elon 100 from September 2019.
(How do I know if I have an old or new Elon 100? The controller for the old version says “Efficiency” below the dial (knob), whilst the controller for the new version has “Turn anticlockwise to increase solar hours” below the dial.)
Click here for a Quick Reference User Guide for Elon 100s bought before August 2019.