All I can comment on is my own experience, but I built colored XP-E and XP-E2 lights, all with Qlite drivers in Convoy S2+ hosts. Based on djozz’s testing here, I used the full 3 amps (8x7135) on the XP-E2 lights but only 1.9 amps (5x7135) on the XP-E lights. They’re all on solid copper mcpcb’s, carefully assembled, all that good stuff. They work fine, never given me an issue.