Howdy
I'd love if the lantern actually mattered what you used to make it. Effectively I'd love if you could change the "window" of the light effects by changing the lantern in some way.
20ft is pretty tight, which makes sense for some non battle stuff. But it effectively locks in a weird way for potential ranged builds. Basically I'd love if I could usue a Bullseye lantern and it would change to a cone. Or an underwater lantern and it works under water. or a Torch, and I can put it into asconse and still "wield" it.
though thats all granular. but in general I thought it would be interesting.