When he hovered over his level you see. "You have reached level 20" "To increase your level above 20, find and equip armor which contains light" "Earning XP now creates motes of light" Also there was a progress bar to him earning his next point of light. His exotic helmet has 27 light. His legendary gauntlets have 30 light. His legendary chest armor has 30 light. His legendary legs have 30 light. **Weapons do not have light** Total from gear = 117 He has 118 so he has earned one light point through XP.