Are there any adjustments I need to make to the RingMAXX so I can use these Elinchrom & ARRI units?

The mounting system is adjustable and fits most lights that are designed to fit on a standard 5/8″ light stand. It should fit most lights that are 14″ tall or less.The L7 (which is an LED, not an HMI) might be a little too large. However, a Fresnel is probably not the best light to use in the RingMAXX.