Another excellent choice is the Osram Golden Dragon, available here on cpf in the "Group Buys" forum for $30-35 from various people who have ordered large lots of them from overseas (they are not available for sale retail in the US). The Osram is not quite as bright, but has a MUCH smoother output than the River Rock and has a low setting for really long run times. The River Rock has instead a strobe setting but I don't see much use for this. The Osram is slightly smaller and weighs 216 g to the River Rock's 265 grams (both with 4 AA alkaline batteries). If you use lithium AA batteries either lantern will be lighter, brighter, and last longer between batteries, but they cost significantly more.