Pics Convoy m2 nichia 219c fet 7135 as first build ( successful) thanks for advice

But it won’t center the LED in any sized reflector. That butterfly one is specifically for use with XP- sized reflectors. With XM- sized reflectors it will only insulate, not center.

In fact, I believe that the M1 includes a special centering ring / spacer. If this ring focuses correctly you have two three options: