Lithium466
Enlightened
That Seoul would be a nice drop in replacement, but you'll loose power. They also have a "wide variety of tint" in the beam, not unpleasant, but it's there. I still miss my Seoul High-CRI HDS...bought two used, first one needed warranty repair and I ended up with a new light (high Noon)...second one I haven't sent yet for warranty (but it needs to)