So what is going on with the Nichia219 on copper?

Just the traditional type. I just wanted to see if it’d work and be worth putting into my Mag build instead of the XM-L. I think the answer is no.

I’ve just tried it wired up direct drive to a 14500 ICR and it seemed to work fine, so thankfully it doesn’t appear fried. I have a host coming in from DX which I think I’m going to put it and make it direct drive instead.

These numbers differ quite a bit from foxtrot824’s: LINK