When equipped with at least the hands-on mod (arc) the +20 strength bonus does not activate on radiant light. As hands-on is the only arc helmet mod I have at the moment, I can't test this with others.
-
1 Reply[quote]When equipped with at least the hands-on mod (arc) the +20 strength bonus does not activate on radiant light.[/quote] Because you also have Radiant Light applied to your boots. Multiple copies of the mod don't stack. They cancel the bonus.