Hmm that’s strange. I’ve never had this issue with centering. I normally use the blunt end of a toothpick and gently tap the center of the dome to remove excess solder.
Not a huge difference but the correct diagram for my emitters is below:
UPDATE: Stock levels for sw35 and sw45k are starting to run low. Don’t know when or if I can restock these again once they’re out so if you need some, hit me up before it’s gone.
The sw40 I offer doesn’t have a violet tint. If you’re seeing violet, it’s most likely due to the coating on the glass lens.
Personally I don’t think the lower output is significant. Most of the time, I use my lights for close to medium range work and don’t require a huge wall of light or throw so lumens is less important and CRI is more desirable for me. Depending on your usage, that might vary.