Really interesting! I feel tempted to buy the Titanium light. It looks like they used Tritium gas for tailcap illumination but it could also be some GITD-material like phosphorescent pigments.
$37 is a great deal for the brass pineapple. It’s basically the same as the Ti Lan but with a brass host. It is very heavy solid brass. However I do like the looks of the Ti Lan more. I tempted to buy backups because they are so nice. Have anyone modded them with different driver or emitter?
Maybe it means the Titanium is so shiny that is serves as a second light source by reflecting light. I have both the TiLan and Pineapple and there definitely is only one 219c emitter.