The E Light Flux feature may be disabled at the flip of a switch to deliver a more comfortable treatment to those clients who request it (only increasing the total overall time invested in the procedure, not decreasing the effectiveness). The treatment can be ultra-aggressive or gentle with the convenient controls on the instrument panel.
For high powered E Light/IPL Flux treatments (deep collagen stimulation, scar/stretch mark reduction) the use of a 3.5% topical desensitizing gel is encouraged (which is included in the kit) or 5 minutes of ice pack application to the desired area before treating.
https://centre-biotechnique-avance.com/IPL2018/IPL750/IPL750LS_US.htm