I love this range of alternatives and will check them out. Already have Spokelits, but have been trying to find the Guyot Firefly, it's an attachment for a widemouth bottle that turns it into a lantern, whatever color the bottle is. So you have water and light in one bottle. if your frame accommodates two bottles, then you really do have a lot of light.

http://guyotdesigns.blogspot.com/200...d-morning.html

My problem is I can't find it! My REI guys said they loved it, bought it as soon as it came out, but no longer have it in stock.