I've tried a couple, albeit must be 5 years ago. They where horrid blue tint. The head doesn't screw down fully anymore and they were hardly any brighter. Converted mine back to incan then have a proper Mag 37 lumen one to accompany it!Are there any "drop in" led modules/bulbs for the incan solitares? I know they are super cheap anyway, but I would actually use mine more if I could turn it into a ~10-ish lumen E01 of sorts haha. Drop in sort of like Nite-ize had/has for the 2AA incan mags?