Convoy C8 triple XHP50 not working

Ok this one is a bit strange to me so I'm have trouble with a 32mm tpad board with 3x xhp50 on it I'm running a 2S buck driver I'm getting the right voltage to the leds but I'm only getting them turn on intermediatly but are very dull they were reflowed in series by cutter is series correct for these emitters?

Sounds wrong since its 6v leds.
Series would require 18v to the leds i guess and you give them 6v.

yeah I thought that would be the case I think it might be possible it's a dud board will have to try another one to find out I guess as everything else is right just a bloody expensive to buy

Crap sorry I only just realised what you meant there egnor that other post

so your saying I need them to be in parallel that makes sense now damnit