Meh, it's really hard to get around the reflector size issue. Even with optics, an optic with a larger diameter will often have lower divergence. I have one light, it's an aleph, 1" diameter, it's got an aspheric lens in there, goes forever. It's a total freakshow, and also completely impractical. Although, it's fun at parties when you want to make finger puppets on clouds for all of the 5 minutes it runs in regulation. Also good for weirding out neighbors.