Can your mount flip upside-down? I have something on the left side of my stem already.

YES! The quick-release interface for our lights is reversible, so even if you flip our mount upside-down you can always insert the light right-side-up. This means you can put our mount on the right side of the stem and still keep the light centered, the lever will just flip up when closed instead of down, no problem.

Why don't you include every mounting solution possible with every light?