Could anyone tell me about th ematrix RF settings?

There are different settings (A through C) which determine how much heat (Joules) are delivered.  There is a range of energy with each level and the energy used depends on what you are treating and skin type.  Please consult an expert.  Best, Dr. Green

Those are low, medium and high settings.Within those settings, you can increase mJ/pin.Dr Karamanoukian

THE ABC of eMatrix represents the low, medium and high settings. In Australia we can go upto 100 mj- highest settings, whilst 40 mj is consider low. The over lap also plays a part in eMatrix treatments and the accuracy of shots ( clicks)All the bestDr Davin Lim Laser DermatologistBrisbane, Australia.